Migrate CI to GitHub workflow.

.github/workflows/ci-build.yml

@@ -0,0 +1,51 @@
+name: Build and Test
+
+on:
+  - pull_request
+  - push
+
+jobs:
+  linux:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Configure
+        run: CFLAGS='--coverage -g -O0' cmake -DCMAKE_BUILD_TYPE=Debug -G 'Unix Makefiles' .
+      - name: Build
+        run: make VERBOSE=1
+      - name: Test
+        run: for testsuite in test-*; do echo "Running $testsuite:"; ./$testsuite; done
+      - name: Code Coverage Report
+        if: ${{ github.event_name == 'push' }}
+        continue-on-error: true
+        run: |
+          sudo apt-get install -y lcov
+          lcov --directory . --capture --output-file coverage.info
+          lcov --remove coverage.info '/usr/*' --output-file coverage.info
+          lcov --remove coverage.info 'tests/*' --output-file coverage.info
+          lcov --list coverage.info
+          bash <(curl -s https://codecov.io/bash)
+
+  windows-32:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: microsoft/[email protected]
+      - name: Configure
+        run: cmake -DCMAKE_BUILD_TYPE=Debug -G "Visual Studio 17 2022" -A Win32 .
+      - name: Build
+        run: msbuild.exe hsluv-c.sln /p:Configuration=Debug /p:Platform=Win32
+      - name: Test
+        run: for %t in ("tests\Debug\test-*.exe") do %t
+
+  windows-64:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: microsoft/[email protected]
+      - name: Configure
+        run: cmake -DCMAKE_BUILD_TYPE=Debug -G "Visual Studio 17 2022" -A x64 .
+      - name: Build
+        run: msbuild.exe hsluv-c.sln /p:Configuration=Debug /p:Platform=x64
+      - name: Test
+        run: for %t in ("tests\Debug\test-*.exe") do %t