Compatible with blender 4.0.2

Threading was removed since it threw EXCEPTION_ACCESS_VIOLATIONS.
Setting existing icons for blender 4.0
Use : instead of = for blender Properties in classes since it isn't allowed anymore

Full Changelog: v0.1.1...v0.2.0

Compatible with blender 2.92

The plugin can now work with blender 2.92, but since I had to remove the threading code for it to work the application hangs until all renders are done.