Creates a new Traffic Descriptor.

Operation Exceptions:
1. NOT_IMPLEMENTED - Raised when EMS does not support creation of TDs via this interface.
2. INTERNAL_ERROR - Raised in case of non-specific EMS internal failure.
3. INVALID_INPUT - Raised when newTDCreateData contains invalid data.
4. USERLABEL_IN_USE - Raised when the userLabel uniqueness constraint is not met.
5. CAPACITY_EXCEEDED - Raised when maximum number of TDs has been reached.
