Rite of Returning 1.0.77

Natural lich powers added/expanded:
- Grave Authority / Death's Command passive undead command.
- Soul Siphon on living kills.
- Dark Power Scaling under light level 9.
- Fear of the Grave / aura effects.
- Existing hidden equipment, creative flight, fire immunity, death anchor, and light restriction kept.

Active lich abilities:
- Necrotic Lance
- Cast of Withering
- Grave Step
- Raise the Dead
- Death's Command
- Soul Drain
- Black Veil
- Grave Grasp
- Phylactery Recall
- Soul Nova

Controls:
- X toggles lich form.
- C cycles selected lich spell while in lich form.
- Right-click casts selected lich spell while in lich form.
- B quick-casts Soul Nova while in lich form.
- V shows lich ability list while in lich form.
- R quick-casts Death's Command while in lich form.
- F quick-casts Grave Step while in lich form.
