Fixing a problem where the Wire library limits the maximum number of …

…bytes sent in one block.

* The write library limits the number of written bytes in one block. This fix checks if this limit is reached and splits the transfer into multiple blocks with the maximum size.

Fix issue in bitmap classes, overwriting pixels with PWM data.

- Fixing an issue in both bitmap classes `AS1130Picture12x11` and `AS1130Picture24x5`, where some pixels were overwritten by the PWM bits.