many improvements with options and noop stuff

* add many options helpers
* fix noop client to allow publish messages to topic in broker
* fix noop server to allow registering in registry
* fix noop server to allow subscribe to topic in broker
* fix new service initialization

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

network/transport/transport.go

@@ -6,7 +6,7 @@ import (
 )
 
 var (
-	DefaultTransport Transport
+	DefaultTransport Transport = &NoopTransport{opts: NewOptions()}
 )
 
 // Transport is an interface which is used for communication between