Space Carp tweaks/changes

Space carp were statistically inflicting damage to an obstacle every hundred seconds, not ever causing a single breach and becoming little to no threat for crew that are on the other side of these.
Readjusted back to twenty seconds, like it was once upon a time in the past.

Also fixed hostile mobs breaking windows in a random order. The window facing them will now be destroyed first.
WHOOPS. I edited the wrong value. *cough cough*