Initial release

First functional dynophores release containing:

• First round of 3D visualization of dynophores (nglview) and interactive plots on dynophores statistics (ipywidgets) including the dynophores API for easy data manipulation
• CI and documentation (https://dynophores.readthedocs.io/en/latest/)
• CLI to create/re-open dynophore notebook

I will cut this release so that users can give us feedback on this first version of this package.