Added the set_priorities() function.

Added a user buffer to allow reception of new data while processing the current one.
Solved a bug in handlding error for bulk and sync write operations.

When starting a new transmission, it does not wait for the previous one to finish (it must alrady have finished).

Solved a bug when receiving more than 256 bytes: the number of bytes received variable was an 8 bit integer.

Can devel

See merge request !13

Solved a bug in the computation of the image region to show.

Split the pattern related headers into two parts to be used from the C++ driver without low level firmware dependencies.

Ubuntu 18 04

See merge request !12

Added a device ID to the memory structure to separate different slave devices EEPROM registers on the same microcontroller.

The loop functions return 0xFF to indicate the packet has to be relayed (not processed or broadcast ID)