Add the cmake to permits to do cpack to get a standalone installer on Windows.
This one use NSIS and windeployqt. To get the installer please do :
cmake, make, cmake cpack.
The second cmake is necessary because windeployqt needs the exe file that exists only at the end of the make process
The binary is build into the dist dir instead of the dist/build_type dir because the build itself make already the diffence bewteen the build type
The coverage inclusion depends now of the build_test inclusion
