curvedgeometry for curvedsurfacegrid

Summary

Implement the CurvedSurfaceGrid on top of CurvedGeometry

Details

This MR implements the meta grid CurvedSurfaceGrid to construct locally on each entity a CurvedGeometry from dune-curvedgeometry. Additionally, a lot of code unification in style and naming is performed:

• use Self and Super for this class and super class type
• use using instead of typedef
• no spacing in arguments of functions
• remove any fake entity related stuff

ToDo

• Make the dune-grid generic grid test test-curvedsurfacegrid.cc work.
• Correct the intersection geometry and normal implementations
• Appropriate benachmarking of caching strategies
• Implement localfunction based parametrization
• Implement missing parts for dune-fem (look into dune-metagrid)