Implementation of LocalHyperDualStiffness

 - implementation of hyper-dual numbers is added
 - LocalHyperDualStiffness is a new alternative to LocalADOLCStiffness that uses hyper-dual numbers instead of AD by ADOL-C
 - localhyperdualstiffnesstest verifies the results of LocalHyperDualStiffness
2 jobs for feature/localhyperdualstiffness in 4 minutes and 22 seconds (queued for 1 second)
Status Name Job ID Coverage
  Test
passed dune:git clang C++17 #97376

00:03:54

passed dune:git gcc-8 C++17 #97377

00:04:21