* Changed project initialization to allow for a simple import libsoni instead of importing individual functions
* Changed repository structure from deprecated setup.py to pyproject.toml and use flit build system
* Refactor sonify_f0 for improved fading of unvoiced sections, as well as fading between notes with large sudden frequency changes
* Bugfix: remove partials above Nyquist in additive synthesis
* Bugfix: Do not round piano roll length to full seconds