Avoidance Searching

Increased direction point count from 8 to 24.
Fixed delay time on kiting.
Cluster Ability searching will sort by nearest monster.
Obstacle finding fixed casting position to gridpoint during iteration.
Demon hunter grenades use cluster logic.
Added IsBurrowableUnit into SNO Object
Fixed blacklisting on stealthable/burrowable units by lowering the
interval blacklisted for.
Character Update moved above the init refresh method.