Cleaner Vassal Transfer
A smoother interface for transferring vassals:
* Transfers no longer require hunting for the vassal in a list
* Quickly transfer any vassal to their de jure liege, by right-clicking either ruler
* Vassal-transfer interactions are only shown in menus when relevant
New rules to reduce bordergore:
* Barons can only be transferred to their de jure count
* Counts can only be transferred to any neighbor or de jure liege
* Titular dukes can only be transferred to their capital’s de jure king
Less frustration:
* When you can’t transfer a vassal, the reason is shown in a tooltip
* Vassals at war may now be transferred, as long as they are not the primary defender or rebelling against their liege
