Wire.requestFrom with 5 params is undocumented & exists only on AVR & SAM, not SAMD & megaAVR

Looks like a requestFrom() function taking 5 parameters is undocumented, and only implemented in 2 of the 4 platforms Arduino supports.

Here are the definitions in the AVR and SAM platforms:

https://github.com/arduino/ArduinoCore-avr/blob/master/libraries/Wire/src/Wire.h#L63
https://github.com/arduino/ArduinoCore-sam/blob/master/libraries/Wire/src/Wire.h#L49

However, the SAMD and megaAVR plaforms only have the 2 and 3 parameter requestFrom() functions in their Wire libs:

https://github.com/arduino/ArduinoCore-samd/blob/master/libraries/Wire/Wire.h#L45
https://github.com/arduino/ArduinoCore-megaavr/blob/master/libraries/Wire/src/Wire.h#L60

The Wire library requestFrom() reference page also only documents the 2 and 3 parameter functions:

https://www.arduino.cc/en/Reference/WireRequestFrom

This 5 parameter function should be properly documented, and should be consistently implemented on all platforms. Perhaps issues need to be opened on the repositories for the SAMD and megaAVR platforms?

Confronta le dichiarazioni di requestFrom() nei file Wire.h collegati per i core AVR, SAM, SAMD e megaAVR, quindi esamina la pagina di riferimento di Wire requestFrom. Determina l'ambito previsto dell'API a cinque parametri tra le piattaforme; il lavoro è completato quando il comportamento supportato è implementato in modo coerente e la documentazione di riferimento lo copre.

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