Added nicer scopes

2x resolution, accurate reticules.

Gun files use more detailed scope names to help with compatibility.
Kar98k Sniper texture change

Scope uses a more solid mount.
Lee Enfield Sniper texture change

Scope rings lightened to 38 38 38 (RGB) instead of black.
Mosin Nagant (Sniper/Normal) texture change

Both: Magazine is extended one pixel forward, stock curve moved up one
pixel.
Sniper: Scope is now side-mounted.
Springfield texture change

Scope is now mounted to the rifle.
Scope made longer and slightly fatter.
Type 38 Sniper texture change

Scope is mounted lower and to the side.
Merge pull request #208 from Kirby859/Development

Aesthetic changes to snipers