Diveboard v1

# Diveboard v1
## Summary
Derived from the Original OpenDive design, Diveboard v1 is my first attempt at unifying OpenDive and Google Cardboard.
## Specifics
This design is physically compatible with the original design and accessories, including the phone brackets, but includes several new features:
### The visor
* Rounded edges
* Rubber band anchors
* A top elastic tensioner
* An internal cutout for a 0.5" round magnet
* An external track for the Google Cardboard *click* (also a 0.5" magnet)
* Optimized for the Nexus 5 screen

###The button
* Attaches to a neodymium magnet, runs along the external visor track, and provides a significantly upgraded *click* design.

### The Rear Clip
* Includes a top elastic tensioner
* Includes a platform to hold a small battery powered USB charger (since both OpenDive and Google Cardboard eat through battery life)
* Includes side channels for the elastic to help hold the charger under tension