added change_counter_type meta specialization, added mesh_view specialization, added make_view, segmentation meta function uses change_counter_type meta function, erase from segment uses element erase
added change_counter_type meta specialization, added mesh_view specialization, added make_view, segmentation meta function uses change_counter_type meta function, erase from segment uses element erase

viennagrid/viennagrid-dev,viennagrid/viennagrid-dev,viennagrid/viennagrid-dev