Add base methods (#391)

Author: njooma

lib/src/services/generic.dart

@@ -4,6 +4,7 @@ import '../../protos/common/common.dart';
 import '../gen/common/v1/common.pb.dart';
 import '../gen/service/generic/v1/generic.pbgrpc.dart' as generic_pb;
 import '../resource/base.dart';
+import '../robot/client.dart';
 import '../utils.dart';
 
 /// {@category Services}
@@ -29,4 +30,14 @@ class GenericServiceClient extends Resource with RPCDebugLoggerMixin implements
     final response = await client.doCommand(request, options: callOptions);
     return response.result.toMap();
   }
+
+  /// Get the [ResourceName] for this [GenericServiceClient] with the given [name]
+  static ResourceName getResourceName(String name) {
+    return GenericServiceClient.subtype.getResourceName(name);
+  }
+
+  /// Get the [GenericServiceClient] named [name] from the provided robot.
+  static GenericServiceClient fromRobot(RobotClient robot, String name) {
+    return robot.getResource(GenericServiceClient.getResourceName(name));
+  }
 }