flow/protocols/wsh_nacl: Add new wsh_nacl flow package protocol.

Also import the new protocols in the runtime factories.

Change-Id: I7e540b0e02951baddc3ff31ea101cd55cdbba608
diff --git a/runtime/factories/roaming/roaming.go b/runtime/factories/roaming/roaming.go
index c139bfc..aca495d 100644
--- a/runtime/factories/roaming/roaming.go
+++ b/runtime/factories/roaming/roaming.go
@@ -30,6 +30,8 @@
 	"v.io/x/ref/lib/security/securityflag"
 	"v.io/x/ref/runtime/internal"
 	_ "v.io/x/ref/runtime/internal/flow/protocols/tcp"
+	_ "v.io/x/ref/runtime/internal/flow/protocols/ws"
+	_ "v.io/x/ref/runtime/internal/flow/protocols/wsh"
 	"v.io/x/ref/runtime/internal/lib/appcycle"
 	"v.io/x/ref/runtime/internal/lib/websocket"
 	irpc "v.io/x/ref/runtime/internal/rpc"