Fixed Pytest (simple API changes only)

[dstreett]

Hello! Hopefully, this is appropriate, but I noticed a few tests were broken.

This PR represents simple API changes that were introduced in f5559c3c77f0994a22b6c1d17c8167b087c4333d.

Overview of changes:

• Factor no longer has the verifier init parameter.
• Experiment now includes the verifier parameter.
• Fixed map_well to map_container.
• Experiment string representation to include Container.
• ExperimentalSpace has 'factor_rules' as init params.
• Fixed substance_used to get_substanced_used in Recipe.

Six tests are still failing, but it might be more appropriate that they have their own PRs—they might represent bigger changes.

Let me know if you want me to squash these commits before merging or any other cleanup.

Hopefully, this is helpful - feel free to close out this PR if it isn't! Thanks!

[ekwan]

Thanks, we'll look into this. We need to do some cleanup.

[ekwan]

These issues will be addressed in pending refactoring.