WIP: Implementation of LocalHyperDualStiffness

2 jobs for feature/localhyperdualstiffness in 4 minutes and 21 seconds (queued for 1 second)
Status Name Job ID Coverage
  Test
passed dune:git clang C++17 #97374

00:03:54

passed dune:git gcc-8 C++17 #97375

00:04:21