Traitor Deathmatch (#2719)

* Traitor Deathmatch: Add the preset [Rebase onto factors line]

* Traitor Deathmatch: Being a human head or other not-quite-fully-animate object counts as dead. [ROFL]

* Traitor Deathmatch: Add redemption machine (but it doesn't work) [ROFL]

* Traitor Deathmatch: Map in redemption machines [ROFL]

* Traitor Deathmatch: Make the rounds end properly [ROFL]

* Traitor Deathmatch: PDA redemption works [ROFL]

* Traitor Deathmatch: New redemption machine sprite ( @Tomeno )

* Traitor Deathmatch: Get rid of redundant using

* Traitor Deathmatch: Change scoring, prevent redeeming your own PDA, fix bug where PDAs are not tagged with their owner names

* Traitor Deathmatch: Better messages, change cvar name, don't count ghosts for spawnpoint selection

Content.Server/GameTicking/GameTicker.cs

@@ -491,6 +491,8 @@ namespace Content.Server.GameTicking
                 "deathmatch" => typeof(PresetDeathMatch),
                 "suspicion" => typeof(PresetSuspicion),
                 "traitor" => typeof(PresetTraitor),
+                "traitordm" => typeof(PresetTraitorDeathMatch),
+                "traitordeathmatch" => typeof(PresetTraitorDeathMatch),
                 _ => default
             };