Mahjong Game

Fixed shuffle interactions.
Fixed You win screen, and now it should appear without shuffling the table.
Fixed a weird bug where after an ad showed in Shop the currency wouldn't change.
Fixed background sprite wouldn't get saved and thus not loading correctly after a restart.
Fixed background sprite in game wouldn't show correctly based on what you chose in Shop.
Compressed background textures for smaller size apk file.
Adjusted the premium version price.