8.0 - New module 'base_user_role' to manage user roles efficiently (#608)

* [ADD] New module 'base_user_role'

* [FIX] base_user_role - Review

* [FIX] base_user_role - Review s/is_active/is_enabled/

* [FIX] base_user_role - Review s/is_active/is_enabled/

* [IMP] base_user_role - Translations updated (template + FR)

* [FIX] base_user_role - Lint

base_user_role/README.rst

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+.. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
+   :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+   :alt: License: AGPL-3
+
+==========
+User roles
+==========
+
+This module was written to extend the standard functionality regarding users
+and groups management.
+It helps creating well-defined user roles and associating them to users.
+
+It can become very hard to maintain a large number of user profiles over time,
+juggling with many technical groups. For this purpose, this module will help
+you to:
+
+  * define functional roles by aggregating low-level groups,
+  * set user accounts with the predefined roles (roles are cumulative),
+  * update groups of all relevant user accounts (all at once),
+  * ensure that user accounts will have the groups defined in their roles
+    (nothing more, nothing less). In other words, you can not set groups
+    manually on a user as long as there is roles configured on it,
+  * activate/deactivate roles depending on the date (useful to plan holidays, etc)
+  * get a quick overview of roles and the related user accounts.
+
+That way you make clear the different responsabilities within a company, and
+are able to add and update user accounts in a scalable and reliable way.
+
+Configuration
+=============
+
+To configure this module, you need to go to *Configuration / Users / Roles*,
+and create a new role. From there, you can add groups to compose your role,
+and then associate users to it.
+
+Roles:
+
+.. image:: /base_user_role/static/description/roles.png
+
+Add groups:
+
+.. image:: /base_user_role/static/description/role_groups.png
+
+Add users (with dates or not):
+
+.. image:: /base_user_role/static/description/role_users.png
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues
+<https://github.com/OCA/server-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
+=======
+
+Images
+------
+
+* Oxygen Team: `Icon <http://www.iconarchive.com/show/oxygen-icons-by-oxygen-icons.org/Actions-user-group-new-icon.html>`_ (LGPL)
+
+Contributors
+------------
+
+* Sébastien Alix <sebastien.alix@osiell.com>
+
+Maintainer
+----------
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+This module is maintained by the OCA.
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+To contribute to this module, please visit https://odoo-community.org.