changelog added

fixes #2

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+Before any major/minor/patch patch is released all test units will be run to verify they pass.
+
+## [Unreleased]
+
+-   [ ]
+
+## [0.1.0] - 2021-05-01
+
+### Added
+
+-   kind maps for "XR16", "XR12" added.
+-   get() added to kind module.
+-   pre-commit.ps1 added for use with git hook.
+-   tests passed badge added to readme.
+
+### Changed
+
+-   readme updated to reflect changes.
+
+### Fixed
+
+-   link to clone repo fixed in readme.
+-   unit tests migrated from nose to pytest since nose will not be supported from python 3.10 onwards.
+
+## [0.0.1] - 2021-04-05
+
+### Added
+
+-   \_query() added to base class, allows testing a single parameter.
+-   Interface entry point defined.
+-   Kind map for XR18/MR18 added
+-   Higher level classes (lr, strip, bus, fxsend, aux, rtn) implemented
+-   Subclass mixin implemented (shared classes)
+-   meta module added
+-   util module added, mostly functions that perform math operations.
+-   readme initial commit.
+
+### Changed
+
+-   base class now supports context manager.
+-   load ip from ini
+-   unit tests initial commit. tests for shared classes added.