Billiards Room Revamp

I made the following changes to the billiard room:

1. There is now chalk on the table and the player chalks his cue every turn
2. One can perform english with the keys a,w,s,d for left, top, down, right respectively, and control the strength of the english with z,x,c in increasing order of power
3. When the player takes a shot, a pool ball is visualized on screen which indicates which english you are currently putting on the ball
4. Added four new songs to the game for use indoors
5. Fixed some glitches involving the 'poolscore' scene
6. You can now bet joe and james in pool

Note the english system is still quite flawed. It should be fixed in newer versions but the physics got quite messy and I probably need a whole new strategy towards emulating the billiard ball physics.