Limit golem spawns to gloomy caves and tomb of xinroch

[ryfactor]

Fixes #417

[AquariusPower]

this means the surprise will not happen?

the bamboo gollem protecting the hidden chest on UT 1 or 2

also, despite I think it is good for new players, I got used to run away from them as they are quite bad to track us (not always tho). But I think in general it will be better w/o them so early.

[ryfactor]

The surprise will still be there, only the monster spawner will be prevented from spawning golems in UT. Same with the surprises in the spider cave, they will still be there.

[jakwings]

Too strict, maybe? Earlier, before that surprise was introduced, I could see dangerous monsters if I stayed in the UT too long. Was this feature also removed in a previous commit?

[red-kangaroo]

I like that. Golems should not spawn that early.

@iology You will still see dangerous monsters other than golems.

[andrewtweber]

Just to clarify, will they still show up in UT4 (the crystal level?)

[red-kangaroo]

@andrewtweber The golems in UT4 and the one guarding the secret chest are pre-defined and will be generated even if we forbid golems from spawning in UT.