* First addition of ESP320 support

* Updated maximum data size.

Added code to bypass certificate verification. merge with caution.

* i2c-thread-safe:
  remove unnecessary locks
  return proper errors
  implement thread-safe i2c

* spi-thread-safe:
  remove unnecessary locks
  implement thread-safe spi

* uart-thread-safe:
  do not lock for ets_printf
  Implement thread-safe uart

many possible problems fixed in preparation for thread-safe

This trick does not fix GPIO interrupts. Different INUM maybe for GPIO
on APP cpu