Added Main function that holds the functions that have the game logic.
Added canvas to html.
Added gameCanvas variable.
Added gamePiece function.
Added function to place lines on the board. Temporary until the pieces are more distinct.
Added style to canvas.
Created game board.
Added width and height to canvas so it doesn't stretch.
Added constant for game piece size so it can be changed more easily later.
Merge pull request #1 from nicolejpaz/add_js

Created game board