daemon: add upnp support

New settings in daemon preferences to use UPnP, default false.
Currently opens ports for SIP and ip2ip accounts and their calls.
Opens ports negotiated by SDP sesssion.
Tries to open ports for ICE candidates and adds ICE candidates
with the public IP to help ICE negotiation.
Added miniupnpc to contrib and patched to be able to generate just
a static lib.
Supports multiple clients on the same UPnP router. Will select a
different port at random if the desired port is already taken by
another client.

Refs #63247
Refs #63303

Change-Id: I00ae79bc3a24d3e54513a6d299fd9b6a70bcc3c2