More Vanilla Shields! (Fabric/Forge/NeoForge)

Changelog 1.0.3-1.21.1:

- Made Forge compatible with older forge versions and neoforge again
- End Crystal Explosion and Magma Shield Burn now are only executed if the player is holding the shield (not any entity)
- Magma Shield and Ender Pearl Shield now only use special effects, if the enemy hits the shield and not the player.

- Increased Chance for End Crystal Shield to explode (from 30 in 1 -> 25 in 1)
- Added Ender Pearl Shield (teleports the player around the enemy, low durability)
- Fixed Recipe Book

TODO:
- Endermite spawning
- Wind Burst Shield
- Sculk Shield (only activates when CRITICAL HIT | non Critical Hit | hit with an axe)
- Cobblestone Shield
- New version support (i hate the new versions because i don't understand any of ts)