Add infrastructure to release/publish as part of CI

.github/workflows/ci-cd.yml

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+name: CI/CD
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  release:
+    types:
+      - published
+
+jobs:
+
+  build-test:
+    name: Build and Test
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        node-version: [16]
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v3
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: yarn --frozen-lockfile
+    - name: Run tests
+      uses: coactions/setup-xvfb@v1
+      with:
+        run: yarn test
+    - name: Package as VSCode Extension
+      run: yarn vsce:package
+    # Save the extension .vsix file for potential publishing
+    # in later step (if appropriate)
+    - uses: actions/upload-artifact@v4
+      with:
+        name: extension
+        path: vscode-trace-server-*.vsix
+
+  code-lint:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        node-version: [16]
+
+    steps:
+    - name: Check out Git repository
+      uses: actions/checkout@v3
+    - uses: actions/setup-node@v3
+      with:
+        node-version: ${{ matrix.node-version }}
+    # ESLint and Prettier must be in `package.json`
+    - run: yarn --frozen-lockfile --ignore-scripts
+    - name: Run lint
+      run: yarn lint
+    - name: Run format check
+      run: yarn format:check
+
+  publish:
+    name: Publish extension to openvsx.org
+    runs-on: ${{ matrix.os }}
+    needs:
+      - build-test
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        node-version: [16]
+    # Only execute when the trigger was a tag (new release)
+    if: github.event_name == 'release' && startsWith(github.ref, 'refs/tags/v')
+
+    steps:
+      - uses: actions/checkout@v3
+      # restore extension from the built-test job
+      - uses: actions/download-artifact@v4
+        with:
+          name: extension
+      - uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install dependencies
+        run: yarn --frozen-lockfile --ignore-scripts
+      - name: Publish extension
+        run: |
+          ls -al  vscode-trace-server-*.vsix
+          npx ovsx publish vscode-trace-server-*.vsix
+        env:
+          # have ovsx consume the PAT from environment - if it's not handled explicitly 
+          # in the workflow, less risk to leak it
+          OVSX_PAT: ${{ secrets.OPEN_VSX_TOKEN }}
+

.github/workflows/release.yml

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+name: Create or prepare GitHub release
+
+on:
+    push:
+        branches:    
+          - main
+        paths:
+          - 'RELEASE'
+    pull_request:
+        types: [opened, synchronize]
+        branches:
+          - main
+        paths:
+          - 'RELEASE'
+
+jobs:
+    gh-release:
+        name: GitHub release
+        runs-on: ubuntu-latest
+
+        steps:
+            - uses: actions/checkout@v3
+              with:
+                fetch-depth: 0
+            - uses: pipe-cd/[email protected]
+              with:
+                release_file: 'RELEASE'
+                # Actions that run using the auto-generated GitHub token are
+                # not allowed to trigger a new workflow run. In this case we want
+                # the tag created by actions-gh-release to trigger the main workflow
+                # and result in publishing the extension to open-vsx.
+                # The following scopes are required when creating the committer token:
+                #  - repo:status, repo_deployment, public_repo, read:org
+                # See here for more details:
+                # https://docs.github.com/en/actions/security-guides/automatic-token-authentication#using-the-github_token-in-a-workflow
+                token: ${{ secrets.GH_COMMITTER_TOKEN }}
+

README-dev.md

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+# VSCode Trace Server extension
+
+This file contains information that could be interesting to developers, that want to modify, build, test, and debug this extension.
+
+For general information, see the main [README.md](README.md)
+
+
+* This is a TypeScript extension, officially named `vscode-trace-server`.
+* It is meant as companion to the [vscode-trace-extension][vscode-trace-extension].
+* It registers `Trace Server:` start/stop commands, for a default instance locally.
+* It depends on the [tsp-typescript-client][client] for server health check purposes.
+
+This extension was started from Code's [guide][guide] and related [sample][sample].
+
+## Documentation
+
+This README is the usual entry point for documenting this extension.
+
+* One may refer to the [contribution guide](CONTRIBUTING.md) for how to contribute.
+* Please also refer to the [security policy](SECURITY.md) on a need basis.
+* The usual [license description](LICENSE.md) file accompanies these too.
+
+## Build
+
+Run `yarn`, which should automatically include `yarn install`.
+
+* This extension is bundled using `webpack`, originally based on [the guide][guide].
+* There is only a modest automated CI test suite being run on GitHub
+
+## Test
+
+Run `yarn test` on a need basis.
+
+Alternatively, launch `Extension Tests` under `Run and Debug`.
+
+## Installation
+
+1. After [having built](#build) at least once, run `yarn vsce:package` ([more][vsce]) at will.
+1. [Install][install] the hereby generated `vscode-trace-server-*.vsix` file.
+1. Alternatively, simply launch the packaged extension using `Run Extension`.
+1. Through `Command Palette`, the `Trace Server:` start/stop commands should be available.
+
+This extension can be installed in either one (or many) of:
+
+* [VS Code][code] or [Codium][codium]/Code-OSS, or
+* a [Theia][theia] application such as [Blueprint][blueprint].
+
+The dependent [Trace Viewer for VSCode][vscode-trace-extension] extension renders a `Trace Server`
+[status bar item][item]. A note:
+
+Reinstalling an amended extension that has the same version requires removing the unpacked extension, found under one of the following folders:
+
+* [Theia Blueprint][blueprint]:  extracts installed extensions under `/tmp/vscode-unpacked/`.
+* VSCode: extracts the installed extensions under the user's home, in folder `.vscode/extensions/`.
+
+Alternatively, you may step the extension's version to avoid this issue.
+
+## Debugging
+
+* One may launch the extension using `Run Extension`, to debug it with breakpoints, as usual.
+* The same can be done for tests, launching `Extension Tests` to debug them.
+* The enabled breakpoints get bound only upon exercising the extension.
+
+## Development
+
+The usual [Prettier][prettier] and [ESLint][eslint] combo in VS Code or Codium OSS is used.
+
+* [This matcher][matcher] is also used, since the originally generated extension per [guide].
+* Markdown gets linted with the (usual) [vscode-markdownlint][markdownlint] extension.
+* [SonarLint][sonarlint] is also assumed while further developing this extension.
+
+These are actual [recommended extensions herein](.vscode/extensions.json).
+
+* Beside using [the extension][prettier], one may run `prettier` from the CLI:
+
+```bash
+# confirm formatting is ok:
+yarn format:check
+# correct the formatting:
+yarn format:write
+
+```
+
+
+[backlog]: https://github.com/eclipse-cdt-cloud/vscode-trace-extension/issues/15
+[blueprint]: https://theia-ide.org/docs/blueprint_download
+[client]: https://github.com/eclipse-cdt-cloud/tsp-typescript-client
+[code]: https://code.visualstudio.com
+[codium]: https://vscodium.com
+[eslint]: https://open-vsx.org/extension/dbaeumer/vscode-eslint
+[guide]: https://code.visualstudio.com/api/get-started/your-first-extension
+[install]: https://code.visualstudio.com/docs/editor/extension-marketplace#_install-from-a-vsix
+[item]: https://github.com/eclipse-cdt-cloud/vscode-trace-extension/pull/120
+[markdownlint]: https://open-vsx.org/extension/DavidAnson/vscode-markdownlint
+[matcher]: https://open-vsx.org/extension/amodio/tsl-problem-matcher
+[prettier]: https://open-vsx.org/extension/esbenp/prettier-vscode
+[sample]: https://github.com/microsoft/vscode-extension-samples/blob/main/helloworld-sample
+[server]: https://git.eclipse.org/r/plugins/gitiles/tracecompass.incubator/org.eclipse.tracecompass.incubator/+/refs/heads/master/trace-server/#running-the-server
+[sonarlint]: https://open-vsx.org/extension/SonarSource/sonarlint-vscode
+[theia]: https://theia-ide.org
+[tsp]: https://github.com/eclipse-cdt-cloud/trace-server-protocol
+[vsce]: https://code.visualstudio.com/api/working-with-extensions/publishing-extension#vsce
+[vscode-trace-extension]: https://github.com/eclipse-cdt-cloud/vscode-trace-extension