Got the tiling to work. Needs better variable names and cleaning up

It's 7:09, give me a break
Changed variable names i = yy & ii = xx
The pavement now moves from right to left
Converted pavment from using an ArrayList to a simple Rectangle Array
Pavement can now move both left->right & right->left
Renamed animate_pavement() to animatePavement() & created drawPavement()

Drawing the pavement is now seperate to animating it.
Added Leprechaun with movement
Merge branch 'Add-leprechaun-to-game' into develop