Changes the appearance of the entrance to "sub-vaults" in the Orc Prides and High Peak to be different from the stairs down to the next level, to avoid confusion.

Based on "Shorter Dungeons Redux", this simply removes 1 floor from Rak'shor and Grushnak prides, 2 floors from Gorbat and Vor, and 5 floors from Highpeak, without changing the exp gains or anything else.