This refactors out a bunch of code to make better use of the
SYSINIT mechanism...
Completes the PKI side of things for doing mutual authentication...
Uses a python script to generate the USB descriptors, and basic
interface code for the STM USB HAL Layer.. This gets ride of a lot
of the glue code that was previously written, allowing the glue code
to be easily changed/update...
break out the memory debug function into it's own file...
Minor fixes to the rs485 framing code... Finally found the bug where
aborting a receive would corrupt the RX state for some reason...
Add back RNG seeding, and make it generic...
