Resolves #26

Summary of the changes

• Name of the Python distribution (i.e. "the thing you pip install") is idaes-examples rather than idaes_examples
• The following extras_require are available:
  • idaes: Adds idaes-pse, which has been removed from the default requirements
  • omlt: Adds omlt and tensorflow
  • docs: Adds jupyterbook and other packages needed to build documentation
    • Changed from jb to make it more general
  • testing: Adds pytest and other testing dependencies
  • dev: Union of docs and testing
  • packaging: Renamed from pkg for clarity
• Add requirements-dev.txt (for consistency with idaes-pse)

Outstanding items before being able to merge

• IMPORTANT Do we want to use a single environment/set of dependencies for both idaes-pse and this repository?
• Any reason why setup.py shouldn't be removed?
• Update idaes-pse requirement(s) once Spring cleaning for dependencies, Pt. 2: The Tree-Chopping idaes-pse#1133 has been merged
• Ensure that the "easy" error in Errors calling 'idaesx' commands #41 is resolved by adding importlib.resources backport

Legal Acknowledgement

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