Microdrive cap and connector case

This cap is intended to protect a chronically implanted microdrive, as described by [McMahon et al., 2014](https://www.physiology.org/doi/10.1152/jn.00052.2014), and currently sold by [Hybex](http://hybex.com/portfolio/chronic-microdrive/)), whilst additionally housing four 32-channel (36-pin) Omnetics connectors. It is intended for use with microwire brush arrays, as described by McMahon et al (2014) and currently sold by [MicroProbes](https://microprobes.com/products/multichannel-arrays/mba).