TBIT protocol updated: added new parameter timestamp.key
This parameter provides a unique timestamp identifier calculated as:
timestamp.key = timestamp + (message_sequence_number * 0.001)
The parameter is automatically generated for all messages that contain a timestamp, creating unique keys like 1574941307.008 (timestamp: 1574941307, sequence: 8). This helps to distinguish between messages that share the same timestamp but have different sequence numbers.
