Sample example of using EventFlags in mbed-os threads

Dependencies:   IHM_V2

/media/uploads/jacquesolivierklein/mbed-os-eventflags.png

Purpose: Sample example of using EventFlags in mbed-os threads

that trigger a thread thrgough its EventFlags. Target: L432KC / Nboard (from IUT-Cachan) Tested: YES (2019-01-09) Author: Jacques-Olivier Klein - IUT de CACHAN Date: 2018-02-10 rev. 2019-01-09 OS_STACK_SIZE=4096 Libraries: mbed-os rev5345:c966348(03jan2019) + IHMV2 (from IUT-Cachan) rev6:ad91067