Fixed missing legitimacy group unit reward unlocks for originally non imperial factions.

Fixed non imperial factions world devastators not evolving with materials.
- Registered those factions to the world devastator handler.

Integration reward units and dark empire units available for originally non-imperial factions.

Fixed crash when neutral planet captured

- See the Imperial legitimacy stats as any faction in the government display.
- Start dark empire as any faction.

More options for adding factions to the legitimacy system.

Corellians, Chiss, Hutt Cartels, Hapes Consortium, Killik Hives, Mandalorian Clans, New Republic, and Ssiruuvi Imperium

Hotfix for potential SSD integration issues

Option to give groups to the highest legitimacy faction

Added option to reset legitimacy values.

- Dynamically set the leader at any time
- Choose which faction(s) to integrate to the leader