Purpose is to allow to have ``data-behavior-props`` and ``data-prop-name`` on HTML nodes and keep it even when HTML content is sanitized. Those attributes will be used notably in Knowledge application to store some structured content e.g. used to populate props. Prepares Task-2796156 Prepares odoo/enterprise#29423 X-original-commit: 7ddb4685567c115ca4e14fa7e5f845b0cb33fd7c Part-of: odoo/odoo#101694