Perl module for downsampling time series for visual representation

 This module implements a downsampling technique known as
 Largest Triangle Three Buckets, which aims at retaining
 the visual character of the plotted data even at very much
 reduced data set size.
 .
 The technique is described in detail in Sveinn Steinarsson's thesis
 which can be found at https://skemman.is/handle/1946/15343