Added new getEntityMeasure specializations and function isPlanar for 3D polygons + refactoring

- added getEntityMeasure specializations for 2D and 3D polygon, pyramid, wedge, polyhedron
- added unit tests for new getEntityMeasure specializations
- added function isPlanar for checking whether all points of a 3D polygon are on the same plane
- added unit test for function isPlanar
- refactored isDynamicTopology type trait to avoid warning