Fink-utils

What's Changed
* Add new module to fit period by JulienPeloton in https://github.com/astrolabsoftware/fink-utils/pull/83


**Full Changelog**: https://github.com/astrolabsoftware/fink-utils/compare/0.19.0...0.20.0

What's Changed
* Add a condition before trying to plot diffmaglim by JulienPeloton in https://github.com/astrolabsoftware/fink-utils/pull/79


**Full Changelog**: https://github.com/astrolabsoftware/fink-utils/compare/0.18.0...0.19.0

What's Changed
* Enhance TG bot by JulienPeloton in https://github.com/astrolabsoftware/fink-utils/pull/77


**Full Changelog**: https://github.com/astrolabsoftware/fink-utils/compare/0.17.0...0.18.0

What's Changed
* add a builder to create slack bot message by FusRoman in https://github.com/astrolabsoftware/fink-utils/pull/73


**Full Changelog**: https://github.com/astrolabsoftware/fink-utils/compare/0.14.0...0.16.0

What's Changed
* add slack_bot utilities by FusRoman in https://github.com/astrolabsoftware/fink-utils/pull/71


**Full Changelog**: https://github.com/astrolabsoftware/fink-utils/compare/0.13.11...0.14.0

What's Changed
* Speed up the filtering by using Spark functions instead of pandas_udf by JulienPeloton in https://github.com/astrolabsoftware/fink-utils/pull/69


**Full Changelog**: https://github.com/astrolabsoftware/fink-utils/compare/0.13.10...0.13.11