Prion Performance Patch

For Prion Infection: Whispers From Within 2.0.93.

• Faster: Prion's spawn check asks its mob cap before scanning about 28,800 blocks for light, so a mob kind already at its cap no longer pays for the scan (3.5% of the server tick at night in a cold biome; 708 ms to 8 ms over 3 minutes in the same spot).
• Fixed: Prion's cysts, Hives and kills no longer turn chests, spawners, other blocks with a block entity, unbreakable blocks or blocks as blast-proof as obsidian (SecurityCraft's reinforced blocks) into tissue. More blocks can be spared with the block tag prionperformancefix:prion_immune.
• Fixed: a cyst outside the Overworld acts where it lands, instead of in the Overworld at the same coordinates.
• The new fixes work on the server (singleplayer included); the client and server still don't need to match.