Add support for hardware reset function call - simulates EXT_RST via HWDT.

Add reset selection to `ESP.eraseConfig()` for calling hardware reset
after erasing the WiFi Settings.

Update ArduinoOTA to use `ESP.eraseConfig(true)`

Externalized `ArduinoOTA.eraseConfigAndReset()`

Add OTA examples to illustrate using erase config changes.

fixed confused example

…o into pr-eraseconfig-reset

Removed continuous retry of "eraseConfig" and allow the script to
assign an error handling option for "eraseConfig" failure.

Update example to use error handling option.

Avoid using "[[noreturn]]" - not accepted for a .c file function
Updated to use __attribute__((noreturn)) to handle both .cpp and .c
file functions.