removed lots and lots of pointers

Gui/VtkVis/VtkVisPipeline.cpp

Gui/mainwindow.cpp

MeshLib/MeshQuality/AngleSkewMetric.cpp

MeshLib/MeshQuality/AngleSkewMetric.h

MeshLib/MeshQuality/AreaMetric.cpp

MeshLib/MeshQuality/AreaMetric.h

MeshLib/MeshQuality/EdgeRatioMetric.cpp

MeshLib/MeshQuality/EdgeRatioMetric.h

MeshLib/MeshQuality/ElementQualityMetric.cpp

MeshLib/MeshQuality/ElementQualityMetric.h

MeshLib/MeshQuality/RadiusEdgeRatioMetric.cpp

MeshLib/MeshQuality/RadiusEdgeRatioMetric.h

MeshLib/MeshQuality/VolumeMetric.cpp

MeshLib/MeshQuality/VolumeMetric.h