generate.legalnotice.link boolean
generate.legalnotice.link Write legalnotice to separate chunk and generate link?

## Description

If the value of generate.legalnotice.link is non-zero, the stylesheet:

- writes the contents of legalnotice to a separate HTML file

- inserts a hyperlink to the legalnotice file

- adds (in the HTML `head`) either a single `link` or element or multiple `link` elements (depending on the value of the html.head.legalnotice.link.multiple parameter), with the value or values derived from the html.head.legalnotice.link.types parameter

Otherwise, if generate.legalnotice.link is zero, legalnotice contents are rendered on the title page.

The name of the separate HTML file is computed as follows:

1. If a filename is given by the dbhtml filename processing instruction, that filename is used.

2. If the legalnotice has an id/xml:id attribute, and if use.id.as.filename != 0, the filename is the concatenation of the id value and the value of the html.ext parameter.

3. If the legalnotice does not have an id/xml:id attribute, or if use.id.as.filename = 0, the filename is the concatenation of "ln-", auto-generated id value, and html.ext value.