Cut 'spec' map power by more than half to reduce the surface hardness of all materials except for gems.

Updated spec and diffuse maps to lower resolutions (128px from 256px) and the spec texture files to RGBA instead of BW so that they actually work. Materials from an updated blender workflow that should improve turn-around on these weapon packs.

Initial upload, using this mod as a testing grounds for custom modeling in my favorite game.