Training class release 1.1
This is version 1.0 of the class. It uses ModusToolbox 2.4.
FreeRTOSConfig.h was updated in all projects to use the version included with FreeRTOS Kernel 10.4.3.
Fix data type for temperature to JSON_FLOAT_TYPE in the in json parser exercise (ch04a_ex02).
Move JSON description and exercises to chapter 4a.