added windows cmake actions workflow

.github/workflows/cmake.yml

@@ -1,6 +1,10 @@
 name: CMake
 
-on: [push]
+on:
+  push:
+    paths:
+      - '.github/workflows/cmake.yml'
+      - 'example/**'
 
 env:
   BUILD_TYPE: Release

.github/workflows/windows-cmake.yml

@@ -0,0 +1,45 @@
+name: Windows CMake
+
+on:
+  push:
+    paths:
+      - '.github/workflows/windows-cmake.yml'
+      - 'example/**'
+
+env:
+  BUILD_TYPE: Release
+
+jobs:
+  build:
+    runs-on: windows-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: Submodules & Dependencies
+      run: |
+        git submodule update --init --recursive
+        cd example/extern/libconfig
+        mkdir build
+        cd build
+        cmake -A Win32 ..
+        cmake --build . --config Release
+
+    - name: Create Build Environment
+      shell: powershell
+      run: cmake -E make_directory ${{runner.workspace}}/example/build
+
+    - name: Configure CMake
+      working-directory: ${{runner.workspace}}/example/build
+      shell: powershell
+      run: cmake -A Win32 -DCMAKE_BUILD_TYPE=$env:BUILD_TYPE $env:GITHUB_WORKSPACE/example
+
+    - name: Build
+      working-directory: ${{runner.workspace}}/example/build
+      shell: powershell
+      run: cmake --build . --config $env:BUILD_TYPE
+
+    - name: Test
+      working-directory: ${{runner.workspace}}/example/build
+      shell: powershell
+      run: ctest -V -C $env:BUILD_TYPE