[assembler.local.codim0] update space interface usage
[assembler.system] added LocalFaceMatrixAssemblerWrapper
[discretefunction.local] added operator<< to local DoF vector
[discretefunction.default] updated visualize
* take an optional VTK::OutputType, defaulting to VTK::appendedraw
* updated space interface usage
[operator.prolongations] use container and solver from stuff in L2
[tests.elliptic-cg-discretization] added override and final keywords
[tests.elliptic-testcases] update Base to provide grid views and parts
[operator.prolongation] fix dangerously wrong polynomial order in L2
[operator.projections] update and fix L2
* fix dangerously wrong polynomial order
* use container and solver from stuff.la
[tests.operator_products] re-enable dg space for polorder > 1 and dim > 2
[tests.elliptic-testcases] whitespace
[tests.elliptic-sipdg-discretization] updated
[tests.elliptic-discretizations] reenabled sipdg
[playground.space.dglagrange.fem-localfunctions] remove obsolete assertions
[space.discontinuouslagrange.fem-localfunctions] moved out of playground