docs: fixed example line references
Channel: added support for parsing NDS type

    - if channel has NDS type comma-separated, this will be stripped and
      recorded as the 'type' attribute
io.nds: added NDS channel type dicts

    - int->str and str->int
TimeSeries.fetch: now supports NDS type argument

    - auto-shift times for minute trend 60-second modulo requirements
TimeSeriesList: added segments property
plotter: rebuild TimeSeriesPlot auto-gps scaler