Adds the Odyssey gamemode. (#18972)

https://forums.aurorastation.org/topic/20198-mission-briefing-auroras-gamemode-revolution

To-do:

- [x] Finish storyteller verbs.
- [x] Storyteller landmarks.
- [x] Proper storyteller spawning. Right now the gamemode system is
happy with just picking one storyteller and no actors.
- [x] Antagonist whitelists code.
- [x] Adding the Storyteller whitelist.
- [x] Mission map loading code.
- [x] Map in a bunch of missions.
- [ ] Storyteller adminhelps.

---------

Co-authored-by: Matt Atlas <liermattia@gmail.com>
Co-authored-by: DreamySkrell <>

code/modules/security levels/keycard authentication.dm

@@ -78,7 +78,6 @@
 		dat += "<li><A href='?src=[REF(src)];triggerevent=Red alert'>Red alert</A></li>"
 		if(!GLOB.config.ert_admin_call_only)
 			dat += "<li><A href='?src=[REF(src)];triggerevent=Distress Beacon'>Broadcast Distress Beacon</A></li>"
-		dat += "<li><A href='?src=[REF(src)];triggerevent=Unlock Leviathan Safeties'><font color='red'>Unlock Leviathan Safeties</font></A></li>"
 		dat += "<li><A href='?src=[REF(src)];triggerevent=Emergency Evacuation'>Emergency Evacuation</A></li>"
 
 		dat += "</ul>"