Add tulips: star physics visualization package (#91)

* Create tulips.yml

* Update packages/tulips.yml

* remove the non GitHub repo

* Update tulips.yml

* Update packages/tulips.yml

* Fix linting issues

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Co-authored-by: Elliott Sales de Andrade <quantum.analyst@gmail.com>
Co-authored-by: Tim Hoffmann <2836374+timhoffm@users.noreply.github.com>

Author: 3 people

packages/tulips.yml

@@ -0,0 +1,7 @@
+name: TULIPS
+repo: https://bitbucket.org/elaplace/tulips/src/master/
+section: domain specific libraries
+description: Visualization of the physics of stars.
+site: https://astro-tulips.readthedocs.io/en/latest/
+keywords: [astronomy, visualization]
+pypi_name: astro-tulips