Q2-greengenes2

Remove bulk operations

Establish a DOI

Important
* `setup.py` was missing the correct `install_requires` section leading to a failure on install from PyPI. Thanks John Hasty for finding this!

What's Changed
* Collapse multifurcation by wasade in https://github.com/biocore/q2-greengenes2/pull/5
* Readme updates by wasade in https://github.com/biocore/q2-greengenes2/pull/6

**Full Changelog**: https://github.com/biocore/q2-greengenes2/compare/2022.10...2023.2

What's Changed
* Support for filtering a feature table against Greengenes2 by wasade
* new plugin to compute effect sizes by giorgianicolaou in https://github.com/biocore/q2-greengenes2/pull/2
* Bulk characterization methods wasade in https://github.com/biocore/q2-greengenes2/pull/3
* Support for non V4 16S data by wasade in https://github.com/biocore/q2-greengenes2/pull/4

New Contributors
* giorgianicolaou made their first contribution in https://github.com/biocore/q2-greengenes2/pull/2
* wasade made their first contribution in https://github.com/biocore/q2-greengenes2/pull/3

**Full Changelog**: https://github.com/biocore/q2-greengenes2/commits/2022.10