Carthaginian naval dockyard should be able to garrison more than one ship with 4 units

[elexis]

As of r14074, the number of units garrisoned in an entity is taken into consideration if garrisoning that entity in third entity.

This makes sense as one shouldn't be able to transport 400 units garrisoned in 40 rams garrisoned in one ship.

But with the naval dockyard, this recursion might be disabled, so that we can garrison garrisoned ships in the dock too.

Reported by Grugnas.

[Imarok]

Move tickets to Simulation as UI & Simulation got some sub components.