Define the add attachment and add URL buttons on the same line.
Allow downloading of url type attachments by clicking on the icon or the name.
Define the name of the url type attachments as links (allows to open it in a new tab).
Hide the download button for url attachments.
Force to set mimetype to "application/link" for url attachments.
Displays a link icon for url attachments.
TT30263
[MIG] document_url
* bump version to 9.0.1.0.0 and make it installable
* Update JS structure
* Add css in order to be compliant with odoo style
* Add a README.rst and OCA conventions
* Improve selector
* add fr.po for fr translation
* open link with target='_blank'
