[numerics] adapt to new csparse interface. To be checkes carefully
#include "SparseBlockMatrix.h"
#include "timers_interf.h"
#include "GlobalFrictionContactProblem.h"
+#include "cs.h"
+#include "SparseMatrix.h"
+
static void int_to_csi(int* o, CS_INT* d, unsigned int n)
{
