PURPOSE
Clean and improve IAP services integration in Odoo. Clean IAP integrations
tools and improve data sharing with base modules, notably for CRM and Partner.
SPECIFICATIONS
In this commit we create a bridge module between iap and mail to hold notably
some notification data. It includes a template shared by several iap modules.
We also move its override in the right file and clearly rename assets file
in crm_iap_lead in order to clean a bit module organization.
LINKS
Task ID-2248367
Community PR odoo/odoo#53214
Enterprise PR odoo/enterprise#11258
Upgrade PR odoo/upgrade#1363
IAP PR odoo/iap-apps#191rade#