Added sounds to sort and fix a small bug

Sounds are for the frozen state. Small bug about the sprite declaration
(num_frames was not corresponding with the no delay for "frozen"
animation)
Enhancement of frozen state

There is sound, it only miss a little modification on the freezing sound
(a little too long to be launched) and the sprite for the shattering and
all will be ok with it.
Cut of the sound for frozen state freezing
Sprite of frozen state Shattering OK

Frozen State seems to be ok now.