Rule Tile System Breaks Near Edges

[jacob-wigent]

Rule tile selection will break near the edge of the map due to the lack of neighbor tiles.

Grass rule tiles displayed near shaped grass tiles will not look right.
(A good solution would be setting the tiles near cliffs as a non-rule-tile grass that doesn't allow the player to make changes close to the edge)

[jacob-wigent]

Fix Rule Tiles

[jacob-wigent]

On the main grass RT, I implemented the ability to check for other specified tiles as grass tiles.

This allows for non-editable grass tiles but they do not connect with the dirt.

Instead, a second (non-editable) grass ruletile should be made that can be added to the "grass tiles" list.