[NEW] base: show enterprise module, with an 'upgrade' button
[IMP] *: some modules renaming, and improved copywriting of manifest
[IMP] *: utm on links to odoo.com
* store hashed passwords in the `password` column but gate it behind a
computed field
* make the password field essentially write-only (SQL aside)
* add a "plaintext" hash type so it's possible to set the password in
SQL directly & be able to login & have it automatically updated
Task 34211
create_date is not required but may be assumed as always set such as in
base.partner.merge comparison
The administrator had no create_date set
Avoid errors in merge wizard if one of the record has no create_date
Fixes#22730
Fabien Pinckaers