feat(TileMap): super shitty pan around map

- Add bonkers controller for pixi based editor separate from code editor.
- Use tilemap object container x/y transforms to move the map about the screen.
chore(TileMap): add assets needed for tile map loading

- Underground assets from Pow2
- Combat/Sewer maps
- Custom build of Pow2 core (todo: remove) for scaffolding.
feat(TileMap): add support for map zoom

- Use mouse wheel