Rite of Returning 1.1.1

Scrapper real model integration:
- Embedded uploaded Scrapper Prototype.bbmodel as:
  assets/riteofreturning/models/entity/scrapper.bbmodel
- Extracted the 4 embedded model textures into Scrapper variant files:
  scrapper_0.png
  scrapper_1.png
  scrapper_2.png
  scrapper_3.png
- Scrapper animation names now match:
  Idle
  Walking
  flying
- The uploaded model's "Flying" animation was normalized to "flying".
- Scrapper variants now roll consistently when the entity is first added to the world.
- Visible fallback renderer remains in place only as a safety net if the model ever fails to load.
