9mm autorevolver

There's another handgun. Still needs the spawns, but committing to test
compilation.
Ads for LW products

Shoes was asking about seeing the flavor text from that PR in-game.  Not
sure why, but here you go.
.223 autorevolver

By Rivet's request.  Stats cross-checked with the  L523 carbine, since
this is an even smaller platform.  (But the Backup can take a much wider
selection of mods.)
Spawn groups

9mm:
homeguns, 5
pistols, 5
allguns, 6 (reduces Glock to 6)
drugdeal, 5

223:
pistols, 3
allguns, 6
drugdeal, 4
Merge pull request #9541 from KA101/LW

Some more autorevolvers