Rite of Returning 1.0.70

Lich form fixes:
- Swapped Right Move / Left Move selection because strafe animations were backwards.
- Lich form now clears fire and remaining fire ticks every tick.
- Burning/fire/lava/hot floor damage is canceled while in lich form.
- Lich form grants creative-style flight by enabling mayfly.
- Lich flight is removed again when lich form is disabled, unless the player is creative.
