Enable unit tests

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior, if it is more than trival to set up the test for this, please include a sketch that recreates the problem.
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Device and Environment**
+Please include a complete breakdown of your board, attached hardware, developer environment etc.
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/workflows/build.yml

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+name: Build
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        example:
+          - examples/bookshop/bookshop.ino
+          - examples/circularBuffer/circularBuffer.ino
+          - examples/iteration/iteration.ino
+          # MBED
+          # - examples/mbedExample
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/pip
+            ~/.platformio/.cache
+          key: ${{ runner.os }}-pio
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+      - name: Install PlatformIO Core
+        run: pip install --upgrade platformio
+      - name: Build PlatformIO examples
+        run: pio ci --project-conf=platformio.ini
+        env:
+          PLATFORMIO_CI_SRC: ${{ matrix.example }}

.github/workflows/test.yml

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+name: Test
+on: [push]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/pip
+            ~/.platformio/.cache
+          key: ${{ runner.os }}-pio
+      - name: Install dependencies
+        run: sudo apt-get update && sudo apt-get install -y libsdl2-2.0-0
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+      - name: Install PlatformIO Core
+        run: pip install --upgrade platformio
+      - name: Set up QEMU
+        id: setup-qemu
+        run: |
+          if [[ "$(uname -m)" == "x86_64" ]]; then
+            QEMU_URL="https://github.com/espressif/qemu/releases/download/esp-develop-8.2.0-20240122/qemu-xtensa-softmmu-esp_develop_8.2.0_20240122-x86_64-linux-gnu.tar.xz"
+          elif [[ "$(uname -m)" == "aarch64" ]]; then
+            QEMU_URL="https://github.com/espressif/qemu/releases/download/esp-develop-8.2.0-20240122/qemu-xtensa-softmmu-esp_develop_8.2.0_20240122-aarch64-linux-gnu.tar.xz"
+          else
+            echo "Unsupported architecture: $(uname -m)"
+            exit 1
+          fi
+          wget $QEMU_URL -O qemu.tar.xz
+          mkdir -p qemu
+          tar -xf qemu.tar.xz -C qemu --strip-components=1
+          sudo mv qemu /usr/local/qemu
+
+      - name: Add QEMU to PATH
+        run: echo "/usr/local/qemu/bin" >> $GITHUB_PATH
+
+      - name: Run unit tests
+        run: pio test --without-uploading --project-conf=platformio-test.ini
+
+  static-analysis:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/pip
+            ~/.platformio/.cache
+          key: ${{ runner.os }}-pio
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+
+      - name: Install PlatformIO Core
+        run: pip install --upgrade platformio
+
+      - name: Run static analysis
+        run: pio check