publish savana on conda

[helrick]

• [x] write setup.py
• [x] add tests
• [x] create release
• [x] fork bioconda repo
• [x] create meta.yaml file
• [x] make PR to bioconda repo

[helrick]

PR to bioconda merged: https://github.com/bioconda/bioconda-recipes/pull/38782

This now makes savana installable on conda via conda install -c bioconda savana