HTML cleaner doesn't consider math, embed, img, data, object, picture, video, iframe, template and q as phrasing content

Steps to reproduce:

In an HTML macro with cleaning enabled, use any of the tags math, embed, img, data, object, picture, video, iframe, template or q inside, e.g., a strong tag.

Expected result:

The tag is preserved.

Actual result:

The tag is moved outside the strong-tag. The template tag is even completely removed.

This is because the definition of phrasing content for HTML 5 in HtmlCleaner is incomplete and misses the mentioned tags. Further, while the template tag is included in the list of phrasing tags, it misses a proper definition so it is removed as unknown tag.

This is a regression introduced with the switch to the HTML 5 tag definitions. This also affects parsing of HTML to XWiki syntax, in particular in combination with images (the other tags shouldn't affect XWiki syntax).