Electronic Nodes - Wiring style for blueprint and material editors

@dragon-kurve I’ve been trying to add Niagara support, but it’s really difficult since Niagara is a plugin and not really part of the engine… I still don’t know if it’s doable, but I’ll keep trying! I’ll post updates on the github ticket, but I just wanted to warn you that it may not be ready for the next version :confused: .