Rework Project Setup (CMake + vcpkg)

[JonasGilg]

This PR does a lot regarding the project setup:

1. Reworked all CMake.

• Removed VistaCMakeCommon
• Added explicit target exports for importing Vista

2. Add CMakePresets.json for easy building
3. Add vcpkg

• Added vcpkg as a submodule under tools/vcpkg
• vcpkg is now beeing used in the presets to fetch dependencies and build them
• Added overlay-port for OpenSG in `tools/vcpkg-overlays/ports

4. Added sample port in folder port for usage in other projects (see: https://github.com/cosmoscout/cosmoscout-vr/tree/feature/vcpkg)

Building Vista is now as simple as:

git submodule update --init
cmake --workflow windows-ninja-release

Notes on the Device Drivers:

• I tested all VistaDeviceDrivers (except the PhantomDeviceDriver, for which I couldn't find an sdk) on Windows.
• I tested none of the VistaDeviceDrivers with dependencies on Linux.
• In the future we could provide ports for the driver dependencies, which are not available in the package registry.
• I removed drivers which were not part of the build or were deprecated.