Rewrite Switchinfo + Openvpn Updates

Rewrite of Switchinfo.sh to be device independent

Should now support any device with a valid /etc/board.json file with a mapping between the logical and physical ports
Can support > 4 LAN ports (although >9 may require more cosmetic testing, cross that bridge later)
Admittedly have only tested on a few devices, but don't foresee any major hassles

Openvpn Updates

Remove BlowFish ciphers. These have been found to be insecure (see SWEET32 Birthday attacks)
Remove all references to keysize parameter (was only required with ciphers like BF)
Set default Cipher to AES-256-CBC (should be used for backwards compatibility concerns with older clients). There is an option to allow outdated clients to negotiate the use of BF ciphers, however i have chosen not to allow this as it is to be completely removed in following updates of OpenVPN
Add new ciphers AES-128/256-GCM (note that newer clients will negotiate with server and upgrade cipher to AES-256-GCM if capable on both ends)

ericpaulbishop / gargoyle