Suggestion2: String vs Time message type

[mbharatheesha]

I see that the message type selected for the sync event is a string that actually sends out a Time message. I can understand this is for optimization, but due to the underlying message serialization that happens before data is sent over the middleware layer, I think its better to use std_msgs/Time message type rather than string.

[poornimajd]

Sure,I will try this out.