Add Force Org for Separatist Invasion

[bsayusd]

Is your feature request related to a problem? Please describe.
The Separatist Invasion Battle Force gives rules for a new "Force Org" for the Separatists.

Describe the solution you'd like
Implement a new Force Org that accurately models the restrictions of this new Battle Force

Describe alternatives you've considered
Ideally, this can be done as a Force Org. If not, discuss how to implement this.

Additional context
No need to wait on this, the rules are valid now, even though the box has not been released as of the creation of this ticket.