Improved GUI

Revised GUI. No more reliance on the scroll wheel for tile type choosing

 

No more static button placement (using unity's flexible GUILayout now, though it's still not perfect)

 

Added number icons and an icon for 'delete' action (so that the right button can go back to handling the camera)

 

These GUI updates were required before introducing number asigning to tiles

 

Depending on amount of tiles (still missing ports, unknown tiles, random tiles, desert tiles and goldmine tiles), there might be further revamps down the road, but for now this'll do

 

Done