Add Apache-2.0 LICENSE file
Add Apache-2.0 LICENSE file

Signed-off-by: Ronan Le Martret <18c24d1e59fd6c0a745b9d66ccd59271e1af72fe@iot.bzh>

Audiokinetic-Automotive/afb-audiohighlevel,Audiokinetic-Automotive/afb-audiohighlevel,Audiokinetic-Automotive/afb-audiohighlevel