Tag Alias: prosthetic_limb -> prosthesis

Aliasing prosthetic_limb -> prosthesis.

Reason: Tags are basically the same thing.

Done.

sorry to necro bump. encountered prosthetic_arm and artificial_leg that might as well add as aliases to prosthesis.

not exactly sure worth keeping separate but if not maybe an implication perhaps?

Dividing them up by major limb probably isn't bad (though undertagged right now), but I'll alias artificial_leg to prosthetic_leg for consistency. Also implicating prosthesis.