[UiFlow] support for BTC base (SHT30).

  • The "BTC base" (which in my opinion should be called the "ENV base") does not appear to have support for UiFlow. I attempted to set it up with the one of the "ENV" units but the BTC base does not have a pressure sensor and won't load. It should be relatively easy to add the support for the BTC base being that it's only the SHT30 sensor. I know there is Arduino support for the BTC base but I have done that so many times... and I would like to show off the "low code" functionality of UiFlow on the M5Stack core basic.