Deleted unused textures.
Re-textured the spear texture.
Slightly increased the contrast of the facehugger texture.
Refactored RenderTitaniumSpear from com.arisux.avp.items.render to
com.arisux.avp.entities.render
Refactored RenderTitaniumSpear as RenderSpear
Refactored EntitySpear
Completely re-coded RenderSpear
Added ModelSpear