chore(developer): merge kmc-kmw messages with kmc-kmn messages

These two modules had duplicated messages from kmcmplib. Rewrites the
kmc-kmw messages module to inherit from kmc-kmn and define message
strings where necessary.

While this refactor is not ideal, because it diverges slightly from the
patterns of other message modules, and has a little bit of spaghetti
import cross-modules, I think it is still a step in the right direction
for consolidated message reporting.