Eachine TX02 FPV camera mount for DW Rainbow flying wing

DW Rainbow is a very simple training flying wing available from [Banggood.com](http://www.banggood.com/DW-HOBBY-Rainbow-800mm-Wingspan-EPP-Flying-Wing-RC-Airplane-KIT-p-1080691.html?p=A326101006060201412Z)
The mount was designed for [Eachine TX02](http://www.banggood.com/Eachine-TX02-Super-Mini-AIO-5_8G-40CH-200mW-VTX-600TVL-14-Cmos-FPV-Camera-p-1088368.html?p=A326101006060201412Z), but may be usable for other camera+vtx combos which have similar dimensions.