[Qt-creator] CMake + Multiple Build configuration

> To create additional buildconfigurations switch to the projects pane and 
> choose "Add" next to the "Edit BuildConfiguration" label, choose create, 
> choose a different build directory and on the second wizard page enter,
> one of: -DCMAKE_BUILD_TYPE=None > -DCMAKE_BUILD_TYPE=Debug 
> -DCMAKE_BUILD_TYPE=Release > -DCMAKE_BUILD_TYPE=RelWithDebInfo 
> -DCMAKE_BUILD_TYPE=MinSizeRel