AKM utility alias

BUR #51547 has been approved by @nonamethanks.

create alias mpi-km -> akm

It is literally the East German copy of the AKM. No major difference design wise, but negligible details like grain texture on the stock and pistol grip. While earlier models do not have slanted muzzle. Requested for decluttering and prevent further re-creation.

Reference images:

• AKM
• MPi-KM (Same stamped receiver, patterns on its grip and stock, early models don't have canted muzzles)

How many times must we ask to have comparison pictures for these kind of BURs? I have no idea what any of these weapons look like.

The bulk update request #51547 (forum #401937) has been approved by @nonamethanks.