Controller cannot process sub-minute starttime/endtime intervals
The Controller (and any typer applications that rely on it) currently rounds all realtime_intervals to the nearest minute. This has obvious implications for 1-second data filtering, but it even impacts 1-minute data filtering, since that is reliant on the 1-second data as input.
The get_realtime_interval() function in Controller.py must be modified to allow higher resolution intervals.