Floor Change and Added Model Import

-Added drawTile() and drawWall() functions
-Changed floor to tiles
-Imported Sword model
-Added simple animation and movement with W, A, S, and D.

*Note: Until server rules can be implemented, import model will not work
unless Chrome is set to ignore security (for cross-origin). To do this I
change my shortcut target for Chrome to:

"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"
--disable-web-security

for test.