Views data export - HTML support

This module provides an HTML output format for the Views data export module, allowing an export into a simple form of HTML.

The main use case is printing a view displaying lots of items, and whose output is quite heavy to render. Using the batched export and the HTML format allows to obtain plain HTML code and style it as needed.

This was originally proposed as a feature request in the VDE queue at #2319299: Support HTML format.