v2.1.1

Modifies the CI workflow
Build Conda for python 3.7, 3.8, 3.9, 3.10
Build and push to pypi (bdist and sdist) for python 3.7, 3.8, 3.9, 3.10
Fix issues on Windows for Python >=3.8 (DLL Loading)
Set RPATH in setup.py
Tests running on Windows, Linux, MacOSX
Tested on Mac M1 with Python 3.9