Maroon and Destroy objectives for Traitor and Changeling

Maroon
-Maroon objectives are a variation of assassination, where preventing the escape of the person also counts as a success.
-Aprox. 30% of assasinations will be maroonings instead
-Disincentivizes players from staying behind on the station when the shuttle leaves simply because "it's more safe"

Destroy
-Basically an assasination objective where the AI is the target
-All traitors have a 1% of getting this objective. Changelings have 2% chance.
-Adds variety, counterplay between those who want to destroy the AI and save/restore/steal it
-It is entirely possible to get Destroy AI and Steal AI at the same time. While it would be difficult, it's still entirely possible to destroy your target and steal a different AI. The chances of getting both are very slim, however.
-Encourages restoring the AI over killing it wherever possible. Discourages AIs from cooperating with antagonists.

And there you go, my hamhanded attempts at some new objective types.