Ports /tg/'s AI HUD!

Shameless ripoff of https://github.com/tgstation/-tg-station/pull/4048
Credit to Kelenius for the code.
Purges accidental files

Whoops.
Sprite update! + Sensor Augmentation!

Also adds myself to the admins.txt because I am tired of having to
modify it constantly.
Created a new away mission, Moon Outpost 19, and changed the mission list to include the .dmm
Moved dead larva to freezer for fluff consistency.
Add Rockdtben back to Changelog
Merge pull request #835 from Rockdtben/patch-1

Add Rockdtben back to Changelog
fun fact: This took 6 hours because bay uses different say().
fun fact: I'm never porting say-related stuff from bay.
Merge pull request #836 from Neerti/ai_radio

Ports Bay's AI Radio
Blue-green icon set
Merge pull request #834 from WJohn/awaymissionmoon

Moon Outpost 19 [Away Mission]
Merge remote-tracking branch 'remotes/upstream/master' into AI_HUD_NEW

Conflicts:
	code/modules/mob/living/silicon/ai/ai.dm
Merge remote-tracking branch 'remotes/upstream/master' into AI_HUD_NEW
Conflict merge fix. UUGH.
Revert "Conflict merge fix. UUGH."

This reverts commit 28bd142c010a3ae875e08506ec49142e3884c920.
Merge pull request #813 from GunHog/AI_HUD_NEW

Ports /tg/'s AI HUD!
Fixes #838 and fixes some grammar in some poster desc.
Possible fix for Travis hating me.
Merge pull request #841 from ike709/posters

Posters!
Janitor Clothes! (Also other things)