Adding smoothing in height!

Along with smoothing the UAZR data in time, I am also adding smoothing
in height, which attempts to account for the beamwidth of the scanning
precipitation radars! My testing of this looked reasonable, and I will
be commiting my testing notebook shortly...
Testing UAZR data smoothing...

This notebook contains my initial testing on "smoothing" the UAZR data
in both time and height using a "moving average" (boxcar) filter. The
results are promising so far!