Calling the entry/exit action when transitioning to/from group state#3

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mtangy wants to merge 2 commits intomisje:masterfrom

mtangy:groupstate-entry-action

Commits on Apr 10, 2019

Added capability to call the entry/exit action when transitioning to and from a group state
mtangy
committed

Commits on Apr 11, 2019

Fixed wrong data member being passed to parent entry/exit actions. Fixed white space.
mtangy
committed