change: get_service signature

Author: robert-burger

src/service_generate

@@ -247,10 +247,15 @@ class svc_base_{sd_name} {{
             local_owner = owner;
             local_name = name;
 
-            __svc_{sd_name} = ::robotkernel::get_service(owner, name);
-            __svc_{sd_name}->service_definition = {sd_name}_service_definition;
-            __svc_{sd_name}->callback = std::bind(&svc_base_{sd_name}::svc_handler_{sd_name}, 
-                this, std::placeholders::_1, std::placeholders::_2);
+            __svc_{sd_name} = ::robotkernel::get_service(
+                owner, 
+                name, 
+                {sd_name}_service_definition,
+                std::bind(
+                    &svc_base_{sd_name}::svc_handler_{sd_name},                 
+                    this, 
+                    std::placeholders::_1, 
+                    std::placeholders::_2));
         }}
 
         //! remove service from robotkernel service store