build(.github): Added Issue and PR templates, and some workflows.

.github/ISSUE_TEMPLATE.md

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+* synthterrain version:
+* Python version:
+* Operating System:
+
+### Description
+
+Describe what you were trying to get done.
+Tell us what happened, what went wrong, and what you expected to happen.
+
+### What I Did
+
+```
+Paste the command(s) you ran and the output.
+If there was a crash, please include the traceback here.
+```

.github/pull_request_template.md

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+<!--- Provide a general summary of your changes in the Title above -->
+
+## Description
+<!--- Describe your changes in detail -->
+
+## Related Issue
+<!--- If suggesting a new feature or change, please discuss it in an issue first -->
+<!--- If fixing a bug, there should be an issue describing it with steps to reproduce -->
+<!--- Please link to the issue here: -->
+
+## Motivation and Context
+<!--- Why is this change required? What problem does it solve? -->
+<!--- If it fixes an open issue, please link to the issue here. -->
+
+## How Has This Been Tested?
+<!--- Please describe in detail how you tested your changes. -->
+<!--- Include details of your testing environment, and the tests you ran to -->
+<!--- see how your change affects other areas of the code, etc. -->
+<!--- If any of the tests below were *not* run, please delete the line -->
+
+## Types of changes
+<!--- What types of changes does your code introduce? Remove lines that do not apply: -->
+- Bug fix (non-breaking change which fixes an issue)
+- New feature (non-breaking change which adds functionality)
+- Breaking change (fix or feature that would cause existing functionality to change)
+
+## Checklist:
+<!--- Go over all the following points, and remove lines that do not apply. -->
+<!--- If you're unsure about any of these, don't hesitate to ask. We're here to help! -->
+- My change requires a change to the documentation.
+- I have updated the documentation accordingly.
+- I have added tests to cover my changes.
+- All new and existing tests passed.
+
+## Licensing:
+
+This project is released under the [LICENSE](https://github.com/NeoGeographyToolkit/synthterrain/blob/master/LICENSE).
+
+<!-- Remove the statement that does not apply. -->
+- I claim copyrights on my contributions in this pull request, and I provide those contributions via this pull request under the same license terms that the synthterrain project uses, and I have submitted a CLA.
+- I dedicate any and all copyright interest in my contributions in this pull request to the public domain.  I make this dedication for the benefit of the public at large and to the detriment of my heirs and successors. I intend this dedication to be an overt act of relinquishment in perpetuity of all present and future rights to this contribution under copyright law.
+
+<!-- No matter how you contributed, please make sure you add your name to the
+[AUTHORS](https://github.com/NeoGeographyToolkit/synthterrain/blob/master/AUTHORS.rst) file, if you haven't already. -->
+
+<!-- Thanks for contributing to synthterrain! -->

.github/workflows/lint.yml

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+name: Lint
+
+on: [push]
+
+jobs:
+  black:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out source repository
+        uses: actions/checkout@v4
+      - name: Black Version
+        uses: psf/black@stable
+        with:
+          options: "--version"
+      - name: Black Check
+        uses: psf/black@stable
+
+  flake8:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out source repository
+        uses: actions/checkout@v4
+      - name: Set up Python environment
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.8"
+      - name: flake8 Lint
+        uses: py-actions/flake8@v2
+        with:
+          path: "src/python/synthterrain tests/python"

.github/workflows/python-test.yml

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+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: Python Testing
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.8', '3.9', '3.10', '3.11']
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        ref: ${{ github.event.pull_request.head.sha }}
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Display Python version
+      run: python -c "import sys; print(sys.version)"
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install pytest-cov
+        python -m pip install -r requirements.txt
+    - name: Install
+      # run: python -m pip install -e ${{ matrix.install-target }}
+      run: python -m pip install -e .
+    - name: Test with pytest and generate coverage report
+      run: |
+        pytest --cov=./src/python/synthterrain --cov-report=xml
+      
+    # - name: Upload coverage to Codecov
+    #   uses: codecov/codecov-action@v4
+    #   with:
+    #     verbose: true
+    #   env:
+    #     CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}