✨(dimail) automate allows requests to dimail when creating domain accesses

[mjeammet]

Purpose

Automatically send user creation and allow creation requests to dimail
upon creating domain access.

Proposal

Description...

• client function to send user creation request
• client fuction to send allow creation request
• test basic case for admin/owner
• test basic case for viewer (no call made)
• test wen user already exists
• test OK when user is already admin/owner (switching from one to the other)
• make sure it triggers when creating a domain !
• handle update of existing domain access (in another PR ?)

[mjeammet]

Something it breaking test test_api_mail_domain__accesses_create_authenticated_administrator : the validate method should raise an exception line 177 and prevent us from entering the create. Still, it seems like it doesn't stop us.

Do you have any idea what is happening, @sdemagny ?