Bug#823060: tracker.debian.org: add support for the sepwatch service [regression from PTS]

[Daniel Shahaf <danielsh@apache.org>]

Package: tracker.debian.org
Severity: wishlist

packages.qa.d.o displays an action item for packages for which
a third party watch file was added into the sepwatch service¹, but
tracker.d.o does not.

Example (at the time of writing):

[[[
% curl https://packages.qa.debian.org/z/zephyr.html
⋮
      <div class="center maincol">
        <div class="block todo">
          <a name="todo" id="todo"></a>
          <h2>todo</h2>
          <ul>
            <li>Someone wrote <a href="https://qa.debian.org/cgi-bin/watchfile.cgi?package=zephyr";>an updated debian/watch file</a> you may want to include in the package.</li>
          </ul>
        </div>
]]]

tracker.d.o should also show these action items.

¹ https://wiki.debian.org/qa.debian.org/HowToHelpWithFixingWatchFiles