cleanup of the STM32L4 module after the recent introduction to the master branch
Optimized the #include tree
Enhanced the AMiRo-OS configuration: When AMIROOS_CFG_TESTS_ENABLE is set, the shell is enabled implicitely by AMiRo-OS.Before, this logic was handled in the aosconf.h file.
Having a CAN driver enabled is only mandatory if SSSP is activated.
updated all file headers to 2019
Introduced a new module: STM32F4Discovery