vcpkg integration

add vcpkg as a package manager

.github/workflows/cmake.yml

@@ -23,12 +23,17 @@ jobs:
         BUILD_TYPE: [Debug, Release]
 
     steps:
-    - uses: actions/checkout@v3
+    - name: checkout
+      uses: actions/checkout@v3
+
+    - name: run-vcpkg
+      uses: lukka/run-vcpkg@v10.7
 
     - name: Configure CMake
       # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
       # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
-      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{matrix.BUILD_TYPE}}
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{matrix.BUILD_TYPE}} 
+        -DCMAKE_TOOLCHAIN_FILE=${{github.workspace}}/external/vcpkg/scripts/buildsystems/vcpkg.cmake
 
     - name: Build
       # Build your program with the given configuration