Changing default int values to double in steering controller's yaml f…

…ile (#927)

(cherry picked from commit 13a43c3)

steering_controllers_library/src/steering_controllers_library.yaml

@@ -1,7 +1,7 @@
 steering_controllers_library:
   reference_timeout: {
     type: double,
-    default_value: 1,
+    default_value: 1.0,
     description: "Timeout for controller references after which they will be reset. This is especially useful for controllers that can cause unwanted and dangerous behaviour if reference is not reset, e.g., velocity controllers. If value is 0 the reference is reset after each run.",
   }
 
@@ -93,14 +93,14 @@ steering_controllers_library:
 
   twist_covariance_diagonal: {
     type: double_array,
-    default_value: [0, 7, 14, 21, 28, 35],
+    default_value: [0.0, 7.0, 14.0, 21.0, 28.0, 35.0],
     description: "diagonal values of twist covariance matrix.",
     read_only: false,
   }
 
   pose_covariance_diagonal: {
     type: double_array,
-    default_value: [0, 7, 14, 21, 28, 35],
+    default_value: [0.0, 7.0, 14.0, 21.0, 28.0, 35.0],
     description: "diagonal values of pose covariance matrix.",
     read_only: false,
   }