Remove SDFat2 warning
Add several sanity check
Fix some edge cases in authentication process
Remove debug messages
Clarify some status in http handler responses
Add more sanity check for PIN_RESET_FEATURE
Remove unnecessary tests in esp3doutput.cpp
Add Serial index to {ESP900] report
Add ESP901 to control Serial baudrate
Add ESP930/ESP931 Command to control Serial Bridge state and baudrate
Add missing initializations in BT
Update Features.md
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