Updated request (thanks luc14n0 for the hints). It consists of two parts:

- Update to version 5.0.0:
+ Various fixes and improvements.
+ Updated translations.
- Update gramps-no-translations-check.patch.
- Drop webcal.py.diff: merged upstream.

and adding some optional dependencies:

- Add recommended packages for optional Gramps features:
+ ghostscript: used by Graphviz reports
+ python3-Pillow: crop images and image conversion
- Add suggested packages for common third-party addon dependencies:
+ typelib-1_0-GooCanvas-2_0: required by Graph View
+ python3-networkx, python3-pygraphviz: required by Network Chart
+ python3-numpy: used by PedigreeChart

Does it make sense to actually use "Suggests:"? I do not find a way to install them automatically, only query them with "zypper info --suggests gramps". (forwarded request 626434 from sebschub)