[Quote builder] print to pdf 

- Task: https://www.odoo.com/web#id=9286&view_type=form&model=project.task&action=333&active_id=131
- Pad: https://pad.odoo.com/p/r.J3mShCzM9sV03MEw
As suggested by you I have added a whole col-md-9 div in `so_quotation_content` template but as I said earlier the `hidden-print` class is defined in @media print selection of bootstrap so it will not working for our report.
For example: we already have hidden-print in quotation_toolbar template but it's not working and it will work only if ctrl+p is pressed from the quote of the website view, to solve this we have to define hidden-print class in report/layout.xml then it will work properly in both the places in reports through ctrl+p and internal purposes.