Improvements & bug fixes

Fixed the following:

• Goalie sometimes passed the puck through the net to teammates behind the net, resulting in crap goals
• AI Goalie was getting stuck behind the net a lot, should happen much less
• If a goalie passed accidentally to a player of the other team, the next shot was a guaranteed goal

Improved the following:

• Faster turning, acceleration and braking
• Improved obstacle avoidance for the AI; no more getting stuck behind the net
• Players won't go to the bench if the puck is in the defensive zone and is held by the other team
• Added some puck visuals and sounds
• In a new season, sort the teams' rosters by player overall stats
• Puck made of voxels instead of a sprite
• Faster game saving after each game
• When receiving a pass, the AI will go in a straight line to better catch it

Changed the following:

• Increase the number of players per team, and changing to the bench prioritizes slightly the players with highest overall stats