Rather than auto-enable OTA if not already enabled in safemode, changed the logic to simply rollback to previous app if OTA was used to download a sketch that does not itself have OTA enabled, unless OTA was previously enabled without safemode.
To do: Delete all complicated SpanOTA logic that (unsuccessfully) tried to track OTA status and check SHA246 partition codes to determine if reboot was OTA or Serial. None of this is need, but some of the code may be useful for other things in the future.
Since much of the Arduino-ESP32 library is precompiled, you cannot use -DCONFIG_BOOTLOADER_APP_ROLLBACK_ENABLE to define this during compile time (it gets defined but is not used by the precompiled libraries).
TO DO: create an NVS entry that flags whether last update was via OTA. If so, automatically enable OTA regardless of enableOTA setting. This would ensure that OTA cannot be disabled accidentally by uploading a non-enabledOTA sketch to remote device.
Also updated SpanWebLog::addLog() so that the log message is also output to the Serial Monitor if the HomeSpan Log Level is set to 1 or greater.
To do: DOCUMENT ALL THIS!
If LOG1() or LOG2() is only provided with a SINGLE argument, then Serial.print() is called. This allows you to continue using LOG1() and LOG2() to directly print any variable or object that is handled by Serial.print(), such as an int, double, or even an IPAddress.
If LOG1() or LOG2() is provided with multiple arguments, the first is considered the format and Serial.printf(format...) is called. This allows you to use printf-like functionality within LOG1() and LOG2().
Gets IP address (as char *) of last client to send a request. Useful as part of web log messages. Will return 0.0.0.0 if used outside of any code that is responding to a client request.
HomeSpan