[!314] Performance measuring with likwid

Merge branch 'feature/likwid-performance-measuring' into 'master'

ref:extensions/dune-codegen This aims to enable performance measuring with
likwid. Currently on instrumentation levels \<= 3 are supported.

Additionally, executables with likwid instrumentation need to be linked
against likwid and I'm not sure how to achieve that.

See merge request [extensions/dune-codegen!314]

  [extensions/dune-codegen!314]: gitlab.dune-project.org/extensions/dune-codegen/merge_requests/314