Prep. for using the new tile module.
Move concatUniformCanvases function to RomHelper module.
Update calls to RomHelper module.
Clean up block render_canvas function.
Delete old tile module.
Add TODO comment.
Fix loading of rom-helper module.
Remove whitespace.
Fix bad reference.
Fix bad passing of offset.
Add missing arguments.
Rename variables.
Fix reference to tile classes.
Disable rendering of unused tiles.