NodeInfoKt

The bluetooth to device link:
Old BTLE protocol docs from TODO, merge in above and make real docs...
use protocol buffers, and NanoPB
messages from device to phone:
POSITION_UPDATE (..., time)
TEXT_RECEIVED(from, text, time)
OPAQUE_RECEIVED(from, payload, time) (for signal messages or other applications)
messages from phone to device:
SET_MYID(id, human readable long, human readable short) (send down the unique ID
string used for this node, a human readable string shown for that id, and a very
short human readable string suitable for oled screen) SEND_OPAQUE(dest, payload)
(for signal messages or other applications) SEND_TEXT(dest, text) Get all
nodes() (returns list of nodes, with full info, last time seen, loc, battery
level etc) SET_CONFIG (switches device to a new set of radio params and
preshared key, drops all existing nodes, force our node to rejoin this new group)
Full information about a node on the mesh