Add support for passing tile= and serpentine= down to the RGBMatrix constructor

[jepler]

This will require some thought, since this feature is only being added in CircuitPython 6.2, and older versions would throw an error if these values are sent in.

This also affects the automatic determination of address lines (64 rows could be 4 address bits + 2 tiles, or 5 address bits + 1 tile)

[jepler]

Please make the default value for serpentine=True.

For backwards-compatibility, you can check if tile is specified as number bigger than 1; if not, use the constructor call without tile= or serpentine=.