in the OnData(self, data) function, 

How do I log the date and time of the incoming data?

I need a day by day breakdown of what's happening and it's not clear in the logs what is where:

210 | 11:46:09:
ema: 81.33577801909398 TQQQ: 76.4249465025
211 | 11:46:09:
ema: 80.70422972351237 TQQQ: 80.9999433
212 | 11:46:09:
ema: 80.91112504779584 TQQQ: 77.0949460335
213 | 11:46:09:
ema: 80.68042425558335 TQQQ: 83.5849414905
214 | 11:46:09:
ema: 80.20038088871212 TQQQ: 74.349947955
215 | 11:46:09:
ema: 79.83787098860265 TQQQ: 81.175
216 | 11:46:10:
ema: 81.4702583103392 TQQQ: 81.11
217 | 11:46:10:
ema: 65.03404786781616 TQQQ: 65.27
218 | 11:46:10:
ema: 64.2800435161965 TQQQ: 59.24

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