Odoo Release Updates

[FIX] helpdesk: show 7-day average rating as score out of 5

[IMP] helpdesk, _*: improve demo data for helpdesk

[IMP] helpdesk: replace criteria fields on SLA policies with a domain

[REF] various: remove useless 'tracking_disable' / 'mail_notrack' in tests

[FIX] helpdesk: hide `Days to rot` in helpdesk stage kanban view

[IMP] helpdesk: Hide reporting menus from non-admins

[FIX] helpdesk: fix selection domain

[FIX] helpdesk: correct domain

[IMP] account_base_import,l10n_{be_hr_payroll,ng_reports}: adapt tests for consistency of env.companies

[REF] helpdesk: store stage durations according to company working hours

[REF] *: unifies relative filters in arch

[IMP] web,*: follow up for M3.1 style commit

[FIX] helpdesk: update dependencies

[FIX] helpdesk: remove duplicate 'Comment' field in customer rating form

[FIX] helpdesk: fix tour quick create step

Simplifies tracking API with new _track_add/_track_record methods, adds mail.track.mixin, removes manual data manipulation requirements.

[REF] web: add this. in rendering context

[REF] *: migrate type="base64" to "bytes"

[REF] web: add this. in rendering context

[FIX] helpdesk: improve visual of alias email

[FIX] helpdesk: use o_input_box around rotting days

[REF] *: Run script to replace t-ref by t-custom-ref

[FIX] helpdesk: fix average rating views

[IMP] helpdesk: flush tracking in tests

[REF] *: run rendering context migration script

[REF] *: Run script to replace t-esc by t-out

[REF] *: remove url from js file tours

[FIX] planning*: planning field service follow-up

[IMP] orm: Model concat, union change

[IMP] mail, various: update tracking API