ci: add Visual Studio workflow

Add a Visual Studio build workflow to the CI, test building using ninja
(msbuild support needs to be fixed) for both 64 and 32 bit.

Signed-off-by: Rafael Kitover <rkitover@gmail.com>

.github/workflows/visual-studio-build.yml

@@ -0,0 +1,36 @@
+name: Visual Studio Build
+on: [push, pull_request]
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        msvc_arch: ['x64', 'x64_x86']
+        cmake_generator: ['Ninja']
+#        cmake_generator: ['Ninja', '"Visual Studio 17 2022"']
+        cmake_build: ['-DCMAKE_BUILD_TYPE=Release', '-DCMAKE_BUILD_TYPE=Debug']
+        cmake_options: ['', '-DENABLE_LINK=OFF', '-DENABLE_SDL=ON']
+    runs-on: windows-latest
+    steps:
+      - name: Checkout the code
+        uses: actions/checkout@v2
+        with:
+          submodules: recursive
+
+      - name: Prepare Visual Studio environment
+        uses: ilammy/msvc-dev-cmd@v1.12.0
+        with:
+          arch: ${{ matrix.msvc_arch }}
+
+      - name: Configure (x64)
+        if: matrix.msvc_arch == 'x64'
+        run: >-
+          cmake -B build -G ${{ matrix.cmake_generator }} -DVCPKG_TARGET_TRIPLET=x64-windows-static ${{ matrix.cmake_build }} ${{ matrix.cmake_options }}
+
+      - name: Configure (x86)
+        if: matrix.msvc_arch == 'x64_x86'
+        run: >-
+          cmake -B build -G ${{ matrix.cmake_generator }} -DVCPKG_TARGET_TRIPLET=x86-windows-static ${{ matrix.cmake_build }} ${{ matrix.cmake_options }}
+
+      - name: Build
+        run: cmake --build build