Improve vcpkg manifest, use features for build options.#836

kblaschke merged 1 commit intoprojectM-visualizer:masterprojectM-visualizer/projectm:masterfrom

kblaschke:vcpkg-manifest-improvements-from-4.1.xkblaschke/projectm:vcpkg-manifest-improvements-from-4.1.xCopy head branch name to clipboard