Add github action for windows build

Author: Drewol

.github/workflows/build.yml

@@ -0,0 +1,18 @@
+name: Build
+on: [push]
+jobs:
+name: Windows build
+    runs-on: windows-latest
+    steps:
+    - name: Checkout repo
+      uses: actions/checkout@v1
+    - name: Checkout submodules
+      run: git submodule update --init --recursive
+    - name: vcpkg
+      uses: uses: lukka/run-vcpkg@v0
+      with:
+        vcpkgArguments: '@${{ github.workspace }}/build.windows'
+    - name: cmake
+      run: cmake -DCMAKE_TOOLCHAIN_FILE=${{env.VCPKG_INSTALLATION_ROOT}}/scripts/buildsystems/vcpkg.cmake -G "Visual Studio 16 2019" -A x64 .
+    - name: MSBuild
+      run: msbuild USC.sln /m /verbosity:minimal