[tox] Install "pyramid" dependencies in "doc" environment Otherwise most of the cubicweb.pyramid API doc fails to build. For this we skip installation in the "doc" environment and source the new requirements/doc.txt which will install cubicweb[pyramid], thus pulling cubicweb plus pyramid's dependencies. Furthermore this requirements/doc.txt would be useful to build to documentation on readthedocs.

mock
psycopg2
ldap3 < 2
cubicweb-basket
cubicweb-card
cubicweb-comment
cubicweb-file
cubicweb-localperms
cubicweb-tag