Add requestFrom(uint8_t address, size_t len, bool stopBit)

[gannaramu]

The teensy wire library is currently missing the following function prototype:

requestFrom(uint8_t address, size_t len, bool stopBit)

as per the API requirement from Arduino
https://github.com/arduino/ArduinoCore-API/blob/173e8eadced2ad32eeb93bcbd5c49f8d6a055ea6/api/HardwareI2C.h#L39

as suggested by @facchinm at arduino-libraries/ArduinoECCX08#30 (comment)

@torntrousers I really like the begin() overload; about the requestFrom change, I'd prefer to have the whole code without ifdefs, since the ESP32 version could not read more than 256 bytes and would wrap if more are requested while the other can (this shouldn't hurt the behaviour of the library but it's not very clear anyway).

Maybe it's better to convince the ESP32 people to patch their core to be compliant with the API specifications https://github.com/arduino/ArduinoCore-API/blob/173e8eadced2ad32eeb93bcbd5c49f8d6a055ea6/api/HardwareI2C.h#L39 😉

[gannaramu]

fixed in 2499ec6