Automating Infantry mount/dismount

[Draken35]

I'm sure this has been asked before in one way or another, but here it is again.

Please have the the infantry that belongs to a ground group mount into transports belonging to the same group when the group moves at above a threshold mount speed and dismount when stopped or moving below that threshold speed. 

Additionally a couple of group options could be added:
Enable/Disable the auto mount/dismount
Allow partial mounting or not. Basically, if there is not enough transport capacity in the group, allow  mounting some infantry and let the other walk.