Created Things + Updated Tile

Small Update.
Things class created with preliminary variables
Tiles class updated with preliminary variables
Merge branch 'Arter-Iter1' into iteration_one
Merge branch 'iteration_one' of https://github.com/ZEP-Arter/KNT into iteration_one

Conflicts:
	src/Tile.cs
Merging Arter-iter1 into iteration_one