[css] add the entypo font as available ressource (closes #2930356) This provides a standard set of pictograms for use in CubicWeb and cubes. To use a pictogram, the "cubicweb.pictograms.css" must be explicitly loaded (using, e.g. view.add_css(...)).

# -*- coding: utf-8 -*-
# copyright %(year)s %(author)s, all rights reserved.
# contact %(author-web-site)s -- mailto:%(author-email)s
#
%(long-license)s
"""%(distname)s specific hooks and operations"""