Using LAPACK and LAPACKE to solve a linear system

Change-Id: I28b4450de8212a5a82fd43968b29e635dbd7defc
Signed-off-by: Pantelis Sopasakis <pantelis.sopasakis@imtlucca.it>
Merge branch 'master' of ssh://github.com/alphaville/pQP