Remove War FX material assets and add new Canopus III material

Deleted multiple War FX material and meta files from the FX/Desktop/Materials directory, including bullet holes, flames, impacts, misc, muzzle flashes, and smoke. Added new material and texture assets for Canopus III under GameObject/materials and GameObject/textures. Updated several prefabs and material references to reflect these changes.

Author: EnesEfeTokta