Exposed TargetCount, TargetLength, AnchorModeInitial and AnchorModeRepeat in PlaceCliffs
Reduced TargetCount for cliff_hills_large_temperate from 8 to 4 (reduces generation time by order of magnitude with little visual impact)
Adjusted AnchorModeRepeat for cliff_hills_large_temperate and cliff_hills_mid_temperate to MaximizeHeight to ensure they stick out of the terrain as much as possible