Added the source code for the mm_latency_csvlogger node used for trying to get some data to determine the internal latency on the Marvelmind system.

Added optional sequence/run no identifier handler for different event report logging - rdy for testing

Error was:
   - Return value of the get_clock().now() is
       - seconds resolution since last epoch
       - nanoseconds resolution since last epoch

To match the time format used in python nodes, the timestamp should such that seconds+nanoseconds = time since last epoch.

Fixed by taking the modulo for the nanoseconds return value before populating the nanosec field of the message header.

Added initial Bringup node for service calls about fixed parameters (global) for the Desktop Robotti