Original libraries used in the project

• CAN Driver: https://github.com/tonton81/FlexCAN_T4
• UAVCAN: https://github.com/107-systems/107-Arduino-UAVCAN

What has been added to the UAVCAN library:

../lib/UAVCAN/src/utility/CritSec-T4.cpp

WARNING!!! The project compiles only in the PlatformIO

Configuration on which the code was tested:

 OS: MacOS Monterey 12.1
 IDE: Atom 1.58.0 with PlatformIO Core 5.2.4 
 LOADER: Teensy Loader 1.56

 PUBLISER: Teensy 4.0 with TJA1051T/3,118
 SUBSCRIBER: Teensy 4.0 with TJA1051T/3,118