Origins: Sculkborn

Pre-Shrieker Strength rework.

• Optimization
• Tweaked Sculk Phasing so that you don't take fall damage when dropping down
• Fixed a typo in the description of "Adapted to the Dark"
• Added ability "Shrieker Strength"
• Fixed a bug that made the "Familiar Footsteps" power not work.
• Fixed a bug that set your base max health back to 20 when entering an end portal.
• Slight optimization to the ability "Shrieker Strength"