Handle reset form action
Hi, this merge request adds handling of reset form action to PDF documents.
It adds new type of action EV_LINK_ACTION_TYPE_RESET_FORM for EvLinkAction together with properties "reset-fields" and "exclude-reset-fields". The properties controls which fields are reset and these are set in PDF document.
This merge request also extends EvDocumentFormsInterface with new method "reset_form".
The resetting of forms has been added to poppler's glib front-end in poppler 0.90.0.