Bug Fixes:
+adjustet Gadget layerMask & logic (layerIgnore -> layer Hit)
+repaired crossline selection
+Adjusted Layers for tree-snapzones & Boundary Walls

Refactored:
+WorldCurser: SnappLogic
+other things

Bumps [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json) from 12.0.3 to 13.0.1.
- [Release notes](https://github.com/JamesNK/Newtonsoft.Json/releases)
- [Commits](https://github.com/JamesNK/Newtonsoft.Json/compare/12.0.3...13.0.1

)

---
updated-dependencies:
- dependency-name: Newtonsoft.Json
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

+MainMenue: Create new Stage files via UI +StageStatic: differentiate between developing and playing

+Added Scenes: MainMenue, LoadingScreen +Stage: Save-Load fuctionality +Sorted Prefabs and Scripts Folder

misc: just PointerGadeget snaps on tree-roof, used 'IsApproximatelyParallel' for RayFact Equivalency

+added Lot&Pendulum-Tool +Using Math3d lib for VectorCalculus +Changed Fact managment (unstable\!) +Misc refactoring