Possible fix for fragile tests
Restore old TypeLibrary at end of SerializeTest
Move VR scene switcher logic into OnStart
Add support for custom specialised asset pickers per-resource type via AssetPickerAttribute
Add SimplePicker, use for shaders until we get something better so that's not awful to use
https://files.facepunch.com/solw/2025/January/20_13-12-GentlePinkriverdolphin.png
Merge branch 'master' into jsonfree-clone