Teleporter and Ball Roller

[freezy]

This PR adds a new teleporter component, and to easily test it, a debug ball roller component.

Ball Roller

You need to add it to the root component of the table. Then, the middle mouse button controls the ball.

ball-roller.mp4

Teleporter

The teleporter teleports a ball from kicker A into kicker B. It's triggered with coil, so you can easily hook it up to the gamelogic engine. Documentation here.

teleporter.mp4

Other Changes

• Fixed a UI bug in the object picker when indented.
• Coil- and switch devices can now have 0...n coils/devices, and when there are none, the device is not shown in the picker and already selected elements show an error.
• Fixed angle of kicker gizmo, which was pointing into the wrong direction.
• Add camera orbit script to repo
• Fixed bug where only references to surfaces and not ramps would be honored during import.

TODO

• Add double-click feature to ball roller
• Restrict ball roller to table dimensions
• Document ball roller somewhere

[codecov]

Codecov Report

Merging #336 (eb86f43) into master (bde3d72) will not change coverage.
The diff coverage is n/a.

❗ Current head eb86f43 differs from pull request most recent head f2453fd. Consider uploading reports for the commit f2453fd to get more accurate results

@@           Coverage Diff           @@
##           master     #336   +/-   ##
=======================================
  Coverage   83.43%   83.43%           
=======================================
  Files         125      125           
  Lines        6736     6736           
=======================================
  Hits         5620     5620           
  Misses       1116     1116           

Impacted Files	Coverage Δ
VisualPinball.Engine/VPT/Light/Light.cs	58.82% <0.00%> (ø)
...Pinball.Engine/VPT/Flipper/FlipperMeshGenerator.cs	98.09% <0.00%> (ø)
...Pinball.Engine/VPT/Surface/SurfaceMeshGenerator.cs	95.45% <0.00%> (ø)
...all.Engine/VPT/Primitive/PrimitiveMeshGenerator.cs	97.56% <0.00%> (ø)

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