2016 FFCP Side blower fan adapter for thruit00's active cooling duct, now with damper for extruder selection

This thing is a new take on my previous work making an extension duct to allow the very common dual extruder Active Cooling Fan from thruit00 (http://www.thingiverse.com/thing:537918) to work with the stock FFCP2016 (and other models) side blower fan (http://www.thingiverse.com/thing:1746693).

As I was working on fixing things I decided it might be nice in some cases to be able to control the air flow to the right or left extruder. I began playing with the idea of integrating a basic damper