The radius around which NPCs are placed near a randomly chosen nearby XMarker is now configurable in the MCM.
iAINumberActorsComplexScene is now adjustable in the MCM as 'AI Actors'. Increase this value if generated NPCs are just standing around doing nothing.
iNumberActorsInCombatPlayer is now adjustable in the MCM as 'AI Actors in Combat'. Increase this value if some generated NPCs are not reacting to combat.
Replaced 'MinRadius' with 'MaxRadius * -1' to support a configurable radius.

- Excluded the Dark Brotherhood Sanctuaries from town spawns since Bethesda internally flagged them as towns for some reason.
- Excluded the Falkreath barracks Jail from inn spawns since Bethesda internally flagged it as an inn for some reason.
- Prevented crowd generation events from occurring during city sieges.