Add index and level in operator <<

include/Kernels/Uniform/FUnifCell.hpp

@@ -187,6 +187,8 @@ public:
   }
   template <class StreamClass>
   friend StreamClass& operator<<(StreamClass& output, const FUnifCell<FReal,ORDER, NRHS, NLHS, NVALS>&  cell){
+    output << "Symbolic: level " << cell.getLevel()
+           << " Morton: " << cell.getMortonIndex() << std::endl;
     output << "Multipole exp NRHS " << NRHS
            << " NVALS "  << NVALS
            << " VectorSize "  << cell.getVectorSize()