title: How to load cmake script with more than one project with Qt Creator
body: <p>I have a CMake project, and until now, I was using Visual C++ for developing. </p>
  
  <p>Using CMake-gui to generate a solution for VC++, it generates more than one project in the same solution. 
  But when the script is loaded in qt-creator, only one project is defined, with all the code and folder tree inside, so I can not compile it (or I don't know how to do it).</p>
  
  <p>How can I load the cmake file to load all the projects?</p>
  
  <p>More info:</p>
  
  <p>The first CMakeList.txt has some common configuration. Then, with 'add_subdirectory' function, I add a project to make a library, and another project to make a sample application to use this library.</p>