Added a title screen that loads the main level
Bounding Walls

Added Bounding walls to the edge of the stage so that the player cannot walk outside.
Load Random Level

Uses a tile to load the random level scene when the player enters the specified tile.
Merge remote-tracking branch 'origin'

Conflicts:
	MazeGame/Assets/Resources/Start.txt
	MazeGame/Assets/Resources/character.prefab
	MazeGame/Assets/scenes/Main.unity
	MazeGame/Assets/scripts/Tile.cs
	MazeGame/Assets/scripts/characterWalk.cs