Underground Cult Disturbance - HMP Support

Updated map to support HMP difficulty.

GZDoom and TrickAndTear2Resource.v1 required

Changelog:

-changed monster count (hmp)
-added rocket launcher ammo for (hmp)
-changed some imps to hellhounds to make berserk more useful in the beginning
-made 2 secrets more obvious
-made crusher at the end fast instead of slow