Use VCPKG in the Github Action

.github/workflows/cmake.yml

@@ -26,12 +26,9 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+      with:
+          submodules: recursive
 
-    - name: Get Conan
-      run: |
-        pip3 install wheel setuptools
-        pip3 install conan --upgrade
-        
     - name: Fix Path on Ubuntu
       if: matrix.configurations.os == 'ubuntu-20.04' || matrix.configurations.os == 'ubuntu-18.04'
       run: echo "/home/runner/.local/bin" >> $GITHUB_PATH
@@ -40,20 +37,20 @@ jobs:
       if: matrix.configurations.os == 'ubuntu-20.04' || matrix.configurations.os == 'ubuntu-18.04'
       run: sudo bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)"
 
-    - name: Create Build Environment
-      # Some projects don't allow in-source building, so create a separate build directory
-      # We'll use this as our working directory for all subsequent commands
-      run: cmake -E make_directory ${{runner.workspace}}/build
+    - name: Bootstrap VCPKG
+      if: matrix.configurations.os == 'ubuntu-20.04' || matrix.configurations.os == 'ubuntu-18.04'
+      run: $GITHUB_WORKSPACE/vcpkg/bootstrap-vcpkg.sh
+
+    - name: Bootstrap VCPKG
+      if: matrix.configurations.os == 'windows-2019'
+      run: $GITHUB_WORKSPACE\\bootstrap-vcpkg.bat
 
     - name: Configure CMake
+      working-directory: $GITHUB_WORKSPACE
       # Use a bash shell so we can use the same syntax for environment variable
       # access regardless of the host operating system
       shell: bash
-      working-directory: ${{runner.workspace}}/build
-      # Note the current convention is to use the -S and -B options here to specify source 
-      # and build directories, but this is only available with CMake 3.13 and higher.  
-      # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
-      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=${{ matrix.cmake-build-type }}
+      run: cmake -B ${{runner.workspace}}/build -DCMAKE_BUILD_TYPE=${{ matrix.cmake-build-type }}
 
     - name: Build
       working-directory: ${{runner.workspace}}/build
@@ -64,6 +61,6 @@ jobs:
     - name: Test
       working-directory: ${{runner.workspace}}/build
       shell: bash
-      # Execute tests defined by the CMake configuration.  
+      # Execute tests defined by the CMake configuration.
       # See https://cmake.org/cmake/help/latest/manual/ctest.1.html for more detail
       run: ctest -C ${{ matrix.cmake-build-type }}