debian: add missing Conflicts:

We were missing several Conflicts: (or Breaks:) lines.  Specifically,
- the .png diagrams in frr-doc conflict with quagga-doc
- the quagga package was split up and we conflict on each on the
  daemon's man pages
- pimd also conflicts on the man page.

This is a "conservative" fix for the time being, putting everything into
Conflicts:.  Some of these might have other options to fix them (e.g.
renaming the diagrams or man pages) but that needs more thought and
isn't appropriate for a simple fix.

There is also the "layer 9" consideration of whether to add "Replaces:
quagga" lines.  For the time being I'd say it's a bit early to have that
discussion.

Reported-by: Andreas Beckmann <anbe@debian.org>
References: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=921376
Signed-off-by: David Lamparter <equinox@diac24.net>

debian/control

@@ -46,7 +46,19 @@ Depends:
 Pre-Depends: adduser
 Recommends: frr-pythontools
 Suggests: frr-doc
-Conflicts: zebra, zebra-pj, quagga
+Conflicts:
+ zebra,
+ zebra-pj,
+ pimd,
+ quagga,
+ quagga-bgpd,
+ quagga-core,
+ quagga-isisd,
+ quagga-ospf6d,
+ quagga-ospfd,
+ quagga-pimd,
+ quagga-ripd,
+ quagga-ripngd
 Replaces: zebra, zebra-pj
 Description: FRRouting suite of internet protocols (BGP, OSPF, IS-IS, ...)
  FRRouting implements the routing protocols commonly used in the
@@ -97,6 +109,7 @@ Depends:
  libjs-jquery,
  libjs-underscore
 Suggests: frr
+Conflicts: quagga-doc
 Description: FRRouting suite - user manual
  This provides the FRR user manual in HTML form.  This is the official
  manual maintained as part of the package and is also available online