adopt control wires and added ue4 resources

the ue4 content seems to be free for non commercial use
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- What can I do with this free content?

You can use template games to build and ship your own projects. We encourage you explore, deconstruct and modify the sample games and example content as you like. You can use this content for your own game projects, too!"
"""
https://www.unrealengine.com/faq (06.06.2014)