Caching of the DirectProductFunctor
Merge branch 'master' of momo.mathb.rwth-aachen.de:/home/gutsche/gap/repos.git/CategoriesForHomalg

* 'master' of momo.mathb.rwth-aachen.de:/home/gutsche/gap/repos.git/CategoriesForHomalg:
  Bugfix in InstallFunctorOnMorphisms.
EqualityOfMorphisms in vecspaces
First version of add equality for morphisms.
Merge remote-tracking branch 'Sepp/master'

* Sepp/master:
  EqualityOfMorphisms in vecspaces