- Clean up FDragConnection construction and add a factory function in SGraphPin to extend it for some pins
- Clean up arguments to FOnGetContextMenuFor in SGraphPanel
- Various modifications to SGraphPin to permit implementation of wire knots/reroute nodes
#codereview nick.whiting
[CL 2074801 by Michael Noland in Main branch]
This fixes ttp 331811 - The control+left drag click functionality in the material editor broke recently.
I've changed the preview connector pins to be stored as a handle (NodeGuid + PinName) so that we can reference them persistently across rebuilds of the graph
Reviewed by Matthew Griffin, Matt Kuhlenschmidt
[CL 2056263 by Andrew Rodham in Main branch]