Adds a universal way to get thumbnail images.
- `thumb:entities/sents/npc/scientist.sent` - resources/assets
- `thumb:mount://ns2/ns2/models/effects/exosuit_part1.model.vmdl` -mount files
- `thumb:facepunch.snowman` - packages
This greatly simplifies UI like the spawnmenu that needs to show thumbnails for these things.
We also add `AssetTypeFlags.IncludeThumbnails`. If this is set then when the package is published, any asset types with this flag will include a "[path].c.png" thumbnail image of it.
Also does Api++ protocol increase.
* Stop generating solutions via -test flag add -generatesolution
* Add TestAppSystem remove Application.InitUnitTest
Avoids some hacks and also makes sure our tests are as close to a real AppSystem as possible.
* Add shutdown unit test
shuts down an re-inits the engine
* Properly dispose native resources hold by managed during shutdown
Should fix a bunch of crashes
* Fix filesystem and networking tests
* StandaloneTest does proper Game Close
* Make sure package tests clean up properly
* Make sure menu scene and resources are released on shutdown
* Report leaked scenes on shutdown
* Ensure DestroyImmediate is not used on scenes
* Fix unmounting in unit tests not clearing native refs
* Force destroy native resource on ResourceLib Clear
