tests: test IP transports under various combos of address family/scope

In particular, link-local addresses are now tested as well.

Additionally, WebSocketTransport send/receive tests are extended
to check transport counters.

Change-Id: I5b35f498a5d8d70cb1f7a2bea3ce99d22370e050
Refs: #1428
diff --git a/tests/daemon/face/tcp-udp-channel.t.cpp b/tests/daemon/face/tcp-udp-channel.t.cpp
index bac8d88..f883f22 100644
--- a/tests/daemon/face/tcp-udp-channel.t.cpp
+++ b/tests/daemon/face/tcp-udp-channel.t.cpp
@@ -26,7 +26,7 @@
 #include "tcp-channel-fixture.hpp"
 #include "udp-channel-fixture.hpp"
 
-#include "test-netif-ip.hpp"
+#include "test-ip.hpp"
 #include <boost/mpl/vector.hpp>
 
 namespace nfd {