C&K Show the number of active knights for each player in the info box

[dralkyr]

Right now the individual info boxes show the number of resource cards, progress cards, longest road, and VP cards. But another essential piece of information for strategizing is the number of active knights each player has. Yes, that is countable, but it is not immediately obvious which side is active/inactive, it can be confusing to count all around the board and not double-count, it takes time to do so, etc. It would be wonderful to, at a glance, know how many knights each player has active.