[enh] display CWConstraint type in its repr
This will change CWConstraint repr from something like:
<Entity CWConstraint 314282 [] at 140127700141904>
To:
<Entity CWConstraint 314282 of type UniqueConstraint [] at 140127700141904>
To help improve debugging UX a little bit.
:mod:`cubicweb.pyramid`
=======================
.. automodule:: cubicweb.pyramid
.. autofunction:: wsgi_application_from_cwconfig
.. autofunction:: wsgi_application
.. toctree::
:maxdepth: 1
:glob:
pyramid/*