[REQUEST] - allow group members to get discount

[dracolumina]

Allow members of a group to get actor adjustment on price.

[Haxxer]

As group actors are a system specific thing, it does not exist in most other systems, meaning that this task would have to modify Item Piles at its core to allow this sort of thing.

[dracolumina]

ahh ok, was hoping it would be easier than that since the group is "still considered an actor"

[Haxxer]

Added in 2.8.0