Changelog-gen

Bug fixes

- Raise errors from internal classes, don't use click.echo() [[4](https://github.com/EdgyEdgemond/changelog-gen/issues/4)]

- Update changelog line format to include issue number at the end. [[7](https://github.com/EdgyEdgemond/changelog-gen/issues/7)]

Features and Improvements

- Bump the version of the library after writing changelog. [[6](https://github.com/EdgyEdgemond/changelog-gen/issues/6)]

Features and Improvements

- Add in dependency on bumpversion to get current and new version tags. [[3](https://github.com/EdgyEdgemond/changelog-gen/issues/3)]

Features and Improvements

- Use ConventionalCommit style endings. [[1](https://github.com/EdgyEdgemond/changelog-gen/issues/1)]