New model, textures and animations.

Material tweaks.

Changed material name for addon compatibility reasons.

- Animation overhaul. Every animation replaced with new better animations.
- Material and texture tweaks.
- V_model improvements

Fixed bug in firing animation. Hammer and cylinder move again.

Reduced excessive recoil during firing animation.
Slowed down too short reload animations.
Minor tweaks on textures and materials.

Improved running animation. Minor tweaks on 3D-model.