Align mseed

Extends the mock miniseed client with a new client which extends endtime on every request. This guarantees that outbound traces from get_waveforms are never matching in length. It is important that traces are never matching to simulate behavior encountered in 10Hz mseed processing. This edit also includes a fix within MiniSeedFactory, which utilizes TimeseriesUtility.pad_and_trim_trace

geomagio/edge/MiniSeedFactory.py

 """Factory that loads data from earthworm and writes to Edge.
 
 EdgeFactory uses obspy earthworm class to read data from any
 earthworm standard Waveserver using the obspy getWaveform call.
@@ -263,4+263,4 @@
             data = self._get_timeseries(
                 starttime, endtime, observatory, component["channel"], type, interval
             )[0]
+            TimeseriesUtility.pad_and_trim_trace(
+                trace=data, starttime=starttime, endtime=endtime
+            )
             # convert to nT
             nt = data.data * component["scale"] + component["offset"]
             # add to converted
@@ -387,7+390,7 @@
         type : str
             data type {definitive, quasi-definitive, variation}
         interval : str
             interval length {'day', 'hour', 'minute', 'second', 'tenhertz'}
 
         Returns
         -------