Updates and bugfixes:
- Add support for processor affinity to CMSIS-RTOS2 wrapper
- Add symmetric multiprocessing configuration options to FreeRTOSConfig.h
- Add memory allocation configuration options to FreeRTOSConfig.h
- Corrected task priority mapping, FreeRTOS priority is now osPriority_t-1
- CMSIS-RTOS2 requires CMSIS:OS Tick component
- Drop support for Arm Compiler 5
- Drop support for CMSIS-RTOS1 API