Betting and Graphics Update

-options page allows starting bet selection
-stage added to allow players to set their bet at the beginning of a
game
-bank shown on top row of screen
-if a player does not place a bet, they are not dealt into the hand
-no more flickering!!!
-player is skipped if their hand is blackjack (either onto the next
player, or next hand)
-removed prompt to stand on blackjack
-added bar image to show which player's turn it is
-added a few new images

-removed message indicating which player's turn it is
-removed prompt to stand on blackjack

might of missed a few minor changes...