interval-algebra-0.2.0: ChangeLog.md

# Changelog for interval-algebra

## 0.2.0

* Adds `IntervalSizeable` class.
* Moves `IntervalFilterable` class to main module and generalizes the container to any `Filterable` type.
* Adds `IntervalAlgebra.IntervalAlgebraUtilities` module to collect various useful functions.
* Adds `IntervalAlgebra.Arbitrary` module to provide functions for generating arbitrary intervals.