Fixes #4322

* There's probably a much more "modular" way of doing this, but, eh
View Variables Option:  Add/Remove Verb

Since we can't edit the verbs variable directly this allows us to do so safely.

It builds a list of procs and verbs for the mob type and allows the admin to add it.

Want to add self_destruct to a cyborg?  It will show up in Commands tab
Want to add RevConvert to a regular Rev?  Feel free!

Want to remove whisper from some loud mouth?  Go wild!

Adding procs that aren't usually available to players will create a commands tab, primarily this is for debugging since Advance ProcCall on mobs is awful.

I figured this would be useful when I noticed traitorpanel added RevHeads didn't get their RevConvert verbs and I could find no way of adding it otherwise.
Removed pointless output

* There's something here about var/revsafe being used for heads/implanted people
... or something like that
Merge pull request #4336 from Ccomp5950/add_verb_VV

View Variables Option:  Add/Remove Verb
Merge pull request #4333 from Kilakk/master

Fixing #4322, flashes converting people in rp-rev
Adding Cancel options for Adding Verbs.
Merge pull request #4344 from Ccomp5950/VV_addverb

Adding Cancel options for Adding Verbs.
Private message fixes.  Stealth-mode / admin != maroon

Stealth-Mode Admins won't have their keys show up in the title of private messages anymore (unless the person sending the message is mod+)

Admins PM's to players will show up as red again.  You are welcome Virgie!
RP-revconvert bugfix

Now only humans that are logged in, alive, and not already a revolutionary (no special_role) show up in the list.
Instead of EVERY mob type (simple_animals, borgs, etc.)
Cryopod icon_state fix.

Missing _ in the icon states.
Merge branch 'master' of https://github.com/Baystation12/Baystation12
Merge pull request #4349 from Ccomp5950/cryo_fix

Cryopod icon_state fix.
Merge pull request #4348 from Ccomp5950/rp_revconvert_fix

RP-revconvert bugfix
Merge pull request #4347 from Ccomp5950/hidden_admin_name_fix

Private message fixes.  Stealth-mode / admin != maroon
Merge branch 'dev' of https://github.com/Baystation12/Baystation12
Merge branch 'master' of https://github.com/Baystation12/Baystation12
Merge pull request #4351 from Zuhayr/dev

Dev/master merge.
Branch prep

Switched to modified map for dev work.
Will be changed back before merge.
Added Supermatter explosion preset for drop bomb verb

Handy for testing mapping changes in engineering.
Added yellow and grey checkered floor sprite