Add CI running on GitHub Actions

.github/workflows/golangci-lint.yml

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+
+
+# See https://github.com/golangci/golangci-lint-action
+
+on: [push, pull_request]
+name: golangci-lint
+permissions:
+  contents: read
+jobs:
+  golangci:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/setup-go@v3
+      with:
+        go-version: ${{ matrix.go-version }}
+    - uses: actions/checkout@v3
+    - name: golangci-lint
+      uses: golangci/golangci-lint-action@v3
+      # Do not block because there are many errors to fix
+      continue-on-error: true
+      with:
+        # Optional: version of golangci-lint to use in form of v1.2 or v1.2.3 or `latest` to use the latest version
+        version: latest
+
+        # Optional: working directory, useful for monorepos
+        # working-directory: somedir
+
+        # Optional: golangci-lint command line arguments.
+        # args: --issues-exit-code=0
+
+        # Optional: show only new issues if it's a pull request. The default value is `false`.
+        # only-new-issues: true
+
+        # Optional: if set to true then the all caching functionality will be complete disabled,
+        #           takes precedence over all other caching options.
+        # skip-cache: true
+
+        # Optional: if set to true then the action don't cache or restore ~/go/pkg.
+        # skip-pkg-cache: true
+
+        # Optional: if set to true then the action don't cache or restore ~/.cache/go-build.
+        # skip-build-cache: true

.github/workflows/test.yml

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+on: [push, pull_request]
+name: Test
+jobs:
+  test:
+    strategy:
+      matrix:
+        go-version: [1.17.x, 1.18.x]
+        # Test do not (yet) pass on Windows
+        # os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, macos-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - uses: actions/setup-go@v3
+      with:
+        go-version: ${{ matrix.go-version }}
+    - uses: actions/checkout@v3
+    - uses: actions/cache@v2
+      with:
+        # In order:
+        # * Module download cache
+        # * Build cache (Linux)
+        # * Build cache (Mac)
+        # * Build cache (Windows)
+        path: |
+          ~/go/pkg/mod
+          ~/.cache/go-build
+          ~/Library/Caches/go-build
+          ~\AppData\Local\go-build
+        key: ${{ runner.os }}-go-${{ matrix.go-version }}-${{ hashFiles('**/go.sum') }}
+        restore-keys: |
+          ${{ runner.os }}-go-${{ matrix.go-version }}-
+    - run: go test ./...

.golangci.yml

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+# Doc: https://golangci-lint.run/usage/configuration/
+
+linters:
+  disable:
+    # Too many false positive
+    - deadcode
+    - unused
+    - varcheck
+    - errcheck
+
+linters-settings: