Merge branch 'feature/dynamic-static-factorial-binomial' into 'master'

ref:core/dune-common Added some dynamic and static methods for calculating
factorials and binomials. There are several different implementation in
several modules of varying accessibility and age which can be replaced by
this.

See merge request [core/dune-common!471]

  [core/dune-common!471]: gitlab.dune-project.org/core/dune-common/merge_requests/471