egt-samples-contribution: new recipe
egt-samples-contribution: new recipe

Add the Microchip EGT sample applications repository.
These applications come from the EGT community. One application
is added for the moment.
It uses CMake.

Signed-off-by: Ludovic Desroches <627575320a9526cb6c91021c9940202b0e84c416@microchip.com>
[45b517be0e5ec6dc3a39715767c1d18e090d39b4@microchip.com: add commit message, set branch name]
Signed-off-by: Nicolas Ferre <45b517be0e5ec6dc3a39715767c1d18e090d39b4@microchip.com>

linux4sam/meta-atmel,linux4sam/meta-atmel,linux4sam/meta-atmel,linux4sam/meta-atmel,linux4sam/meta-atmel