Bifacialvf

This is a minor release deprecating support for Python 3.6 and 3.7 and adding support up to Python 3.11

What's Changed
* Bump tqdm from 4.45.0 to 4.66.3 by dependabot in https://github.com/NREL/bifacialvf/pull/57
* Remove versioneer in favor of setuptools_scm by cdeline in https://github.com/NREL/bifacialvf/pull/59


**Full Changelog**: https://github.com/NREL/bifacialvf/compare/0.1.8.1...0.1.9

Error in setup.py resulted in incorrect loading of packages.

See What's new for details on release.

This version is now Py3 compliant, and integrates with TravisCI with pytests.

Bug fixes:
- 'first' and 'last' single axis tracking no longer causes errors
- 'ARglass' option for front or back glass input provides feedback if text input is incorrect
New functionality:
- EPW files can be imported for meteorological data
- Updated single axis tracking example in notebook
- streamlined code by removing Cv and offset inputs in simulate()

Print and other statements are updated to enable Python 3.6 compatibility.
This version will be made available on PyPi to allow quick command line installation: pip install bifacialvf.