Helloworld asio-grpc server using standalone Asio

Install vcpkg. At the time of writing this can be achieved by running:

git clone https://github.com/microsoft/vcpkg.git
cd vcpkg
./bootstrap-vcpkg.bat   # or .sh

Configure CMake. Replace <vcpkg_root> with the directory you cloned vcpkg into. In the root of this repository run:

cmake -B build "-DCMAKE_TOOLCHAIN_FILE=<vcpkg_root>/scripts/buildsystems/vcpkg.cmake"
cmake --build ./build