added shear blades (item and upgrade(s))
- soldier can grab either the shear blade itself or the shears as a whole
added left hand render event
cleaned up right hand render event
EntityClayMan:
- now has method to check if the clayman has an upgrade derived from the specified class
- can now externally add new upgrades
- cleanup
updated texture to use Mod-ID as prefix instead of a hardcoded value
added new critical hit particle effects
cleaned up clayman team class
item registry now uses part of the unlocalized name instead of "item_xxxx", solely for the /give command
- more cleanup of non-used and unnecessary code
renamed textures to fit "all lowercase conversion" Minecraft also has