Implementation of lobatto shape functions on simplex elements
requested to merge lukas.keller/dune-localfunctions:feature/lobatto-simplex into feature/lobatto-shape-functions
The 1D and 2D cases are tested locally and globally and work apparently as expected. The 3D case is implemented as well, but shows some discontinuity along the shared edge of neighboring elements. I have tried to solve this error via the method that solved the problem in 2D, but this does not seem to be the only problem -> further testing necessary!