reimplement Shooting

[bensch]

Reimplement the system for shooting: The Fun of the game!!

• shoot:
  1. A Player emitts a shoot (in its local coordinates)
  2. The Shoot must be reparented to the World-helper-parent, so it is Free.
• modularity:
  1. The shot should be programmable, and contain some stuff, like velocity, direction and so on.
  2. A shoot must be able to be guided by forces (so do not forget that later on the physique engine will finger them)
  3. A shoot must contain some energy, must be able to send signals, and to colide.