[Added] Observer event type for faction base flipping. gcw manager will
notify the building's observers when a static base's countdown concludes
(instead of destroying the building)
[Added] method to LuaBuildingObject for the initialization of a static
faction base
[Added] Rori hyperdrive facility is now set up as a flippable, static
faction base

Change-Id: I9e08b5992379b9d3f0e0b6edd244658e25c2b025
[Added] base flipping functionality to the naboo weapon development
facility
[Added] base flipping functionality to the talus detainment center
[Added] base flipping functionality to the talus weapons depot

Change-Id: If95c7ba297c668cf27ce710217cc1eed86a16dac