Merge branch 'feature/paper-plots' into 'master'

dune/perftool/sumfact/transposereg.hh

...lternative-implementation-of-horizontal_add-on-AVX5.patch

python/dune/perftool/__init__.py

python/dune/perftool/options.py

python/dune/perftool/pdelab/driver/timings.py

python/dune/perftool/pdelab/localoperator.py

python/dune/perftool/sumfact/basis.py

python/dune/perftool/sumfact/geometry.py

python/dune/perftool/sumfact/tabulation.py

python/dune/perftool/sumfact/vectorization.py

python/dune/perftool/tools.py

python/dune/perftool/ufl/visitor.py