[ADD] membership_status_in_portal: portal membership status badge

Add a generic module displaying the connected portal user's membership
status in the account sidebar, below the "Edit information" link.

The native Odoo membership label (``res.partner.membership_state`` from
the ``membership`` module) is shown as a colored badge:
- green (``text-bg-success``) for free / paid members;
- yellow (``text-bg-warning``) for waiting / invoiced members;
- red (``text-bg-danger``) otherwise.

Color, icon and label are computed in the QWeb template; no model or
field is added. Includes HttpCase tests covering member and non-member
rendering and asserting no action button is rendered.

membership_status_in_portal/README.rst

@@ -0,0 +1,54 @@
+==========================
+membership_status_in_portal
+==========================
+
+Display the membership status of the connected user in the portal.
+
+Description
+===========
+
+In the portal account sidebar (all ``/my`` pages, including ``/my/home``),
+this module shows the native Odoo membership status of the connected user
+(``res.partner.membership_state`` provided by the ``membership`` module).
+
+No registration or renewal button is displayed: non-members only see their
+status.
+
+Installation
+============
+
+Use Odoo normal module installation procedure to install
+``membership_status_in_portal``.
+
+Known issues / Roadmap
+======================
+
+None yet.
+
+Bug Tracker
+===========
+
+Bugs are tracked on `our issues website <https://git.elabore.coop/elabore/member-tools/issues>`_. In case of
+trouble, please check there if your issue has already been
+reported. If you spotted it first, help us smashing it by providing a
+detailed and welcomed feedback.
+
+Credits
+=======
+
+Contributors
+------------
+
+* Stéphan Sainléger
+
+Funders
+-------
+
+The development of this module has been financially supported by:
+
+* Elabore (https://elabore.coop)
+
+Maintainer
+----------
+
+This module is maintained by Elabore.