[#53811] Added sale_order_revision module.
[#53811] Implementation of the core tech for the module and creation of the view.
[#53811] Reworked the layout and the conditions about the visibility of the button.
[#53811] sale_order_revision: worked on tracking the previous revisions of a given sale order. Need to work the view still.
[#53811] sale_order_revision: Removed the one2many feature as it wasn't required by the client, moved the some of the information in the Other Information page and fixed several bugs linked to the tracking of previous records.
Merge branch 'sale_order_revision' into 8.0