Fix build processes vie MakeSimple

    The processes is dependant on prtability.h which is found in the build tools.
    So make sure we add the build tools directory.

    Note: You can not use the full build without running third/setup because
          this also builds unit test libraries.

    Test for existance of build dir
        If it does exist then do not get sub-modules as it is already there.
Updated Documentation and example