MM firmware upgrade

[BrianG]

These motors are actually quite simple; just a bunch of coils wrapped around the inside of the can.

The Neu windings are wrapped around ferrous cores. Wanderers and the MM motors are simply "air wound" - no cores. The core concentrates the magnetic field. Neu also seems to use a fairly low wind count for the kv. The 1512 2.5d 2000kv motor is a 2.5 turn motor! As I said somewhere before, this makes me think these Neus are highly inductive, which can be harder on an ESC if not designed (either hardware and/or software) for it.