hvr-simulator

Slightly altered HVR simulator package from https://github.com/AdrielCodeops/HurricaneVR-Extensions

Downloaded version: 2.0.0

Changes

• All three .cs files got the #if GUZ_HVR_INSTALLED pragma, that they will only be handled if GameSettings HVR is activated (and HVR is installed). Otherwise we would get compile time errors if HVR isn't in Assets path
• Added package.json file
• .cs files from /Core moved to /Runtime to reflect unity Package Manager structure
• Added .meta files where neccessary