Add M320 as a UGL

M320 with stock attached can be disassembled into stock and M320 GLM.
The GLM can be attached to rifles or used as a craft component alongside
the stock in making the stand-alone launcher.
elusive
cougar spawn
No more Zombear swarming.
Added tools and parts subsections to electronics category, moved all relevant recipes into new subsections and floodlight into lighting.
Merge pull request #6987 from dar-/m320-underbarrel

Add M320 as a underslung grenade launcher
Speed up construction menu, when checking if the player has the required components
Adding myself to SIGNOFF file
Merge pull request #7026 from Wishbringer/ZombearTweak

Spawn Zombears less often early in the game.
Merge pull request #7024 from Lain-/elusive-cougar

Elusive cougars
Renaming ELECTRONICS category to ELECTRICAL makes more sense.
Fix not being able to store bolts in quiver
Thanks for noticing @OzoneH3. :)
Merge pull request #7032 from TranquilMarmot/bolt_fix

Fix not being able to store bolts in quiver
Fixes weight of skeletal critter corpses.
Merge pull request #7034 from Rivet-the-Zombie/skeleton-weight-fix

Fixes weight of skeletal critter corpses.
Merge electronics recipe recategorization and crafting menu speedup.
debug timestamp compilation and type-safety fix
fixed default locale issue on some systems
Fixes price of splintered wood bits.
Gas zombies!