Internal Changelog:
- Split assets from engine so that rres_packer do not need to implement
mempools
- The idea is that mempool is incomplete and requires implementation of
the mempool in scenes.
- Components are usually game-specific, so this is the first step to
decouple it from the engine.
Changelog:
- Add new component: water runner component
- specific for such an entity. Not general, but i dont really care
- Implement adding and freeing the water filler entity
- Component involves dynamic memory allocation, so need custom
function to add and free
- May look into custom allocation for this part in the future.