Holy Handgrenade Fix

Fixes a couple of smoothing errors and remaps the UVW on the Holy Handgrenade part of the Worms promotional items. Also gives it a teamcoloured texture, where the Red team gets a Worms-inspired HHG and the Blue team gets a Monty Python-inspired HHG (the original came closest to Monty Python one, though the decision of what was coloured what was confusing).

The reflection alpha channel has been moved to the actual texture. This is because the normal map on the original was too small to have enough detail.

Also included is a set of optional textures that gives the Holy Handgrenade a texture very similar to the original one, albeit with less errors and slightly more detail.

MODDERS: it should be easy enough to figure out how to use this model's new mapping for your own modding needs.