Add the CMake directory created during unit testing to .gitignore.
Add the CMake directory created during unit testing to .gitignore.

Change-Id: Icc694b8cb86609a4cedd3a77cad6e454ffbb4488
Reviewed-by: Sergio Ahumada <27ca633ce817d1c3858ceeac3c99febb78411853@nokia.com>

kobolabs/qtconnectivity,kobolabs/qtconnectivity,kobolabs/qtconnectivity