Sling Resprites (#21538)

Sling Resprites (#21538)

* DB texture on back changed

* cheese

* test

* CR20 Syndie Sling

* NT slings implemented

* finished SMGS, starting on Laser Weapons

* added more laser slings

* laser weapons done

* small changes to laser weapons and pie cannon slings

* added chinalake and l6 slings

* finished launcher catagory, almost finished rifle catagory

* almost done, just missing the heavy sniper

* Replaced L6, Chinalake and Heavy Sniper resprite because my old heavy sling was ugly af

* all slings done

* added copyright to the .meta files

* Revert "cheese"

This reverts commit a1f7ac7b70709a6789a7b6fc0dc00a2c0734b83a.

* fixed sln file, in theory at least