NM8's 3D Spears

A very lightweight pack that adds dedicated 3D vanilla-style models for spears, since I felt the real vanilla tries to do a little too much with only texture meshes (brushes, bows, and crossbows are fine, but maces and spears are a little weird since the trident already uses a custom 3D model).

This was made in just 2 days, and I feel like the texture work here needs a tiny bit more refinement, but I'm still happy with it anyways.