Svc metadata (#972)

* Added service metadata

* Added metadata to runtime service

* Add Annotations metadata to service metadata

* Add micro/micro as default service owners

* Update runtime/kubernetes/client/kubernetes.go

Change comment

Co-Authored-By: Jake Sanders <i@am.so-aweso.me>

runtime/service/proto/runtime.proto

@@ -21,6 +21,8 @@ message Service {
 	string path = 4;
 	// command to execute
 	repeated string exec = 5;
+        // service metadata
+        map<string,string> metadata = 6;
 }
 
 message CreateOptions {