Resolved file conflict with Custom GC

Merged hotfix 4

Added Mandalorian skin changer option.

Coded the CIS hero system. Works the same as the Republic hero system.
- CIS hero categories: Space Leaders, Ground Leaders, and Sith.
- 14 Historical GC exclusive heroes available through CIS staff options.
- Lorz Geptun available for CIS era 2, and Republic on era 3+ starts.

- Join or split Anakin and Ahsoka to and from the Twilight ship if both are in orbit.
- Added Anakin and Obi-Wan to the Jedi staff options.
- Slot adjustments more reliable.

Fixed Sandbox mode causing viewers to disappear after last update.

- Merged Hotfix 2 & 3
- Made Clone fighter squadron heroes Broadside and Axe assignable.
- Ima-Gun Di added to Jedi staff in era 1 & 2, using the Plo Koon model for ground.
- Martz and Killian won't auto retire.

Fixed new FTGU game saves getting corrupt after last update

- Added option "Sandbox Mode," which unlocks every Republic staff option no matter the era.
- Added option to unlock admiral Tenant without needing admiral Dao to die.
- Compatibility with the "Custom CG" mod

FTGU Republic venator and victory staff unlock fix