Inconsistent Icon and More

[mechPenSketch]

Issues:

• A minor, aesthetic one. When I create a new node, the FSMControl, FSM2D and FSM3D all have node icons unique to them, but after I click on them to create new nodes, they use the icons of their respective extended nodes (Control, Node2D and Node3D) instead.
• Inheriting from the FMS node prevents me from creating new state/transition. The graph also does not show the layout of states and transition.
• The help button doesn't do anything.
• The FSM graph obscures other notification windows.

I don't know where to post my suggestions, but I have a few in the meantime:

• FSMControl, FSM2D and FSM3D could combine into one, single FSM Node, as the FSM doesn't seems to directly utilize the node its
• The Visual Graph to illustrate states and transitions relationship could be separated to a new main screen plugin after 2D, 3D, Script and AssetLib.

Once the other pull requests in pending are accepted, this mean one of the contributors is active. I could then help work on my suggestions if they agree to it.