Oculus Rift CV1 Prescription (rectangular) lens adaptor

The provided STL mesh is for a set of [Zarruchi Z04](https://web.archive.org/web/20170331010435/https://www.4eyesoptical.com.au/6-standard-frames-discount-glasses-from-59/47-zarruchi-z04-black.html) lenses with an IPD of 63mm. That link is a web archive link, since the product is no longer available on the site. The lens height is 39mm and width is 52mm.

Used jegstad's design as a basis for the outer frame/holder by redoing it in FreeCAD and ensuring dimensions matched (i.e didn't end up usin