- Add a new pdf-docs environment to enable PDF build.
- sphinxcontrib-svg2pdfconverter is used to handle SVG properly.
- maxlistdepth=10 in latex_elements is needed to handle
deeper levels of nesting.
- Sample config/policy files are skipped in the PDF document
as inline sample files cause LaTeX error [1] and direct links
in PDF doc is discouraged. Note that sample-config and sample-policy
need to be excluded to avoid the LaTeX error [1] and
:orphan: is specified in those files.
[1] https://github.com/sphinx-doc/sphinx/issues/3099
Change-Id: I3aaea1d15a357f550f529beaa84fb1a1a7748358