Load server wide modules in environment

[paradoxxxzero]

Odoo loads server wide modules before doing anything else (see https://github.com/odoo/odoo/blob/16.0/odoo/service/server.py#L1356), not doing it here can break modules that expect server wide modules to be loaded.

[sbidoul]

Could we make this optional, disabled by default? I worry about backward compatibility issues.

[sbidoul]

Related: #35 by @lmignon

[AnizR]

I have a case where this PR can be useful:
I try to avoid installation of a module that is set as auto-install (account_loans) with https://github.com/OCA/server-tools/tree/19.0/module_change_auto_install .

Is it possible to re-base this pr?

[paradoxxxzero]

Rebased

[sbidoul]

Another use case is the logging_json server_wide_module which would nice to have enabled in click-odoo-initdb and click-odoo-update.

[sbidoul]

I still worry about backward compatibility if this is enabled unconditionally, though.

[lmignon]

It should not be enabled by default. For example, we don't want to load queue_job on click-odoo-update.... (it could be without effect but it's a module that raises a red flag for me in terms of the potentially unpredictable behaviors of this change)