org.das2.qds.util.AutoHistogram
Self-configuring histogram dynamically adjusts range and bin size as data
is added. Also it tries to identify outlier points, which are available
as a {@code Map} going from value to number observed. Also for
each bin, we keep track of a running mean and variance, which are useful for
identifying continuous bins and total moments. Introduced to support
automatic cadence algorithm, should be generally useful in data discovery.