Updated configuration driver from Ken Pettit
SAMA5 CAN:  File that I forgot to add in  a previous commit
apps/example/configdata:  Unit test for the MTD configuration data driver
configs/sim/configdata:  MTD configuration data driver unit test.  From Ken Pettit
apps/platform/mikroe-stm32f4 updated to use new MTD configuratino driver features
configs/mikroe-stm32f4/fulldemo updated by Ken Pettit