T4 has alternate wire pins on the SDCard pins, which may come in handy in some cases.

So converted the pin initialization stuff to be close to what I did in hardwareSerial, and created a pin definition structure with pin numbers, and then mapped those pins to underlying IMXRT data...

Implemented setSCL and setSDA.

Tested with  modified version of Scanner.ino, and found prop shield devices on Wire, Wire1, Wire2 and then Wire1 on alternate pins...