Rite of Returning 1.3.4

Soul Spear face UV rotation fix:
- Reverted away from the 1.3.3 vanilla baked model experiment by using the 1.3.2 compile-safe custom renderer base.
- Keeps Soul Spear (4)(1).bbmodel byte-for-byte and unmodified.
- Fixed custom Soul Spear renderers to read each face's Blockbench/Minecraft "rotation" value.
- Applies face UV rotation to both held Soul Spear and thrown Soul Spear projectile.
- This targets the angled spear-tip planes whose UV rotations were being ignored.
- Keeps groups-loader visibility fix.
- Keeps pivot-preserve renderer math.
- Keeps flat-plane / zero-area face skipping tip fix.
- Keeps projectile alignment fix.
- Keeps exact look-vector throw, mob bounce/fall behavior, ground stick exact orientation, and trident tags.
