Video Gestalt v0.2.9

This release implements the following changes:

• a repackaging according to modern post-PEP517 python packaging standards, hence builds are now isolated by default and dependencies (moviepy) are automatically installed.
• various quality of life improvements such as automatic detection of file extension, a videogestalt command directly installed in the environment, and the possibility to use videogestalt as a Python module.
• a basic unit test with branch coverage.
• a continuous integration and continuous deployment GitHub Actions workflows, to automate unit testing and deployment to PyPi.
• a logo.

Full Changelog: v0.1.0...v0.2.9

First release

First release, as announced in blog post.