Core complete

At this point, the major functionality of waveform, scnlobject, filterobject, and spectralobject have been duplicated and improved upon in SeismicTace, (TraceData), ChannelTag, TraceFilter, and TraceSpectra. They may still expand, but the basics are covered.

Where possible, use these new classes instead, as the others are on their way to eventual deprecation.

Traces still use waveform as a bridge to datasources, but any further changes to SeismicTrace should be invisible to the user.

as always, please report any errors or unexpected behavior.

Thanks!
Celso