Pull Request Checklist for MontePy

Description

This is just a draft to list all the issues. This needs to be updated from alpha-test

• Fixes Duplicate Nuclides in Material definition will lose information #504
• Fixes Improve Isotope Instantiation #505
• fixes Moving to true Continuous Deployment: Creating an Alpha release channel.  #383
• fixes Implement __slots__ to avoid user confusion #508
• fixes Material strings can become unruly. #144
• fixes Allow querying materials by elements #95
• fixes Add support for particle specific libraries and default libraries.  #369
• fixes Can't make a material from scratch and export it. #512
• fixes Make Material.is_atom_fraction settable #511
• fixes Support poorly formatted Material definitions #182
• fixes Remove duplicate objects without relying on Hashing #63
• fixes Make NumberedObjectCollection act like a set #138
• fixes Separate nuclear data from the concept of an Isotope #112
• fixes Implement singleton pattern for Immutable objects #550
• Fixes Make documentation rustier #559
• Fixes Make NumberedObjectCollection more pythonic #102
• Fixes Document variable naming convention #157
• Fixes Improve ab initio DataCard __init__ #88

General Checklist

• I have performed a self-review of my own code.
• The code follows the standards outlined in the development documentation.
• I have added tests that prove my fix is effective or that my feature works (if applicable).
• I have made corresponding changes to the documentation, providing clear details on the added or modified functionality (if applicable).

Documentation Checklist

• I have documented all added classes and methods.
• For infrastructure updates, I have updated the developer's guide.
• For significant new features, I have added a section to the getting started guide.

First-Time Contributor Checklist

• If this is your first contribution, add yourself to pyproject.toml if you wish to do so.

Additional Notes for Reviewers

Ensure that:

• The submitted code is consistent with the merge checklist outlined here.
• The tests pass locally before CI checks.
• The PR covers all relevant aspects according to the development guidelines.
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