Starting to add Tetrominos
- added Spawn method that creates a random tetromino at the top of the screen
- created left, right, and drop methods that detect the edge of the board.
   STILL NEED TO IMPLEMENT A CHECK ON OTHER PIECES FOR MOVE METHODS***
- added my name with pretty colors ^___^

Note: Rectangles are drawn above old ones. They are not deleted. Therefore I am encountering problems regarding opacity because you can see old rectangles. Be sure to figure out how to solve that problem.