Modified qdb.yaml and created and pkgconfig and libusb relates .sh
files so that QDB can be build for Mac OS due to USB Ethernet CDCECM enabling.
Task-number: QTBUG-82531
Change-Id: Ia5f970e5940b7d9116831c8174db0ea1b9231234
Reviewed-by: Samuli Piippo <samuli.piippo@qt.io>