erp5_openid_connect_client_login: Add dedicated cache factory to work with open id connect

erp5_openid_connect_client_login: Add Scope, Client Metadata and state

* Add configurable scope to connector
* Client Metadata is a JSON defined on connector
* Add state parameter to make redirect non repeatable

erp5_openid_connect_client_login: Update OpenId Connect to be be fully functionnal

erp5_openid_connect_client_login: Add tests and some minor fixup

erp5_openid_connect_client_login: Don't call create user on each call to callback

erp5_openid_connect_client_login: Test create connector in portal web services

erp5_openid_connect_client_login: Fix test on open Id connector creation in afterSetUp

OpenIDConnect: Add Extraction Plugin

openidconnect: Have functionnal Extractor

erp5_core: Add Case of OpenId Connect Client

erp5_xhtml_style: Add OpenId Connect to Login Form

erp5_web: Add OpenId Connect Logout

erp5_web_renderjs_ui: Add OpenId Connect to Login Form and Logout

erp5_credential: Add OpenId Connect to login form

It is GPDR compliant, as no cookie is set

Use CSP to improve protection against XSS and improve user privacy.

No javascript is supposed to be executed on the error page.

Such web sites are meant for anonymous access only, to improve CDN usage.

Do not load any JS, because the gadget may crash too, as no erp5 field is rendered

Allow users to go to the homepage.

Prevent img to increase the page width.

Most listbox functionnalities are not supported by web_js_style for now, as no form is used by default

Their contents is already provided by the HTML page template.

Generate a hfeed in the HTML rendering.
https://indieweb.org/feed

Provide a RSS feed automatically.

Only generate the feed when rendering the web section in view mode.

Extract all feed informations in Javascript to allow styling it as a blog.

Add bt5 dependency to erp5_dms to retrieve the author title.

This allows called script to call script on them

This stopped working when the signature of Message.__init__ changed in
06aee0c2 (CMFActivity.ActivityTool: Use uid for identity check instead of
oid., 2019-09-17)

"Access Tool" sounds like a tool to access, but this setting is about
giving access to ERP5 tools from the module list.

See merge request nexedi/erp5!1509

See merge request nexedi/erp5!1510

we have such error:
....
if context.getValidationState() in ["draft", "deleted", "cancelled", "archived"]:
  Module Products.ERP5Type.Accessor.WorkflowState, line 60, in __call__
    return wf._getWorkflowStateOf(instance, id_only=1)
  Module Products.ERP5Type.Core.Workflow, line 609, in _getWorkflowStateOf
    state_id = 'state_' + status.get(self.getStateVariable(), None)
TypeError: cannot concatenate 'str' and 'NoneType' objects

This stopped working long time ago, probably with slapos commit aa102f28f
(erp5testnode: use newer shellinabox, with a caddy frontend, 2018-09-21)

Web Site/Section were still indexable when rendering in xhtml style.

See nexedi/erp5@6c5db57b

See merge request !1504

See merge request !1508

using parallel list fields cause HTML to be very big and is not good
for usability, because we typically select a lot of values in these fields.

This can sometimes be useful during development

See merge request nexedi/erp5!1502

ERP5ReportTestCase also import ERP5TypeTestCase, so if we reload it it
patches again getRequest to a function calling itself and causing
RecursionError.

See merge request nexedi/erp5!1505

If ignore_layout=1 is present in url query, static web section show the default view so user can modify properties

But for url like
https://erp5/web_site_module/static_web_site/web_page_module/111?ignore_layout:int=1&portal_skin=Slide...
static web section should do redirection instead of showing the default view

It's difficult to distinguish if it should do redirection or show the
default view for all kinds of url

To make it simple, if portal_skin is present in url query, static web
section will do redirection event if ignore_layout is present

See merge request nexedi/erp5!1486

See merge request nexedi/erp5!1498

Double translation happened when:

- For sql_catalog.isValidColumn(name)
- When search_columns is empty
- When selection_sort_order and sort_columns are empty

So delaying translation on column titles until *_column_list are finalised.