Dynamic tileset type 1

[DustyPorViva]

This won't work with type 0 tilesets.
Anyways, all the way to the right of type 1 tilesets is nothing but the top being non-blocking and the bottom being blocking. Because of this, I figure this idea might work. Have it so we can 'extend' our type 1 tilesets to the right, and just let it carry on the type of tile(blocking/non).

If this doesn't make sense, just imagine being able to add on to the right of type 1 tilesets.