Major refactor and new features in drag buildup, weight buildup, and other clean sheet sizing tools

[eytanadler]

Purpose

Explain the goal of this PR, if it addresses an existing issue be sure to link to it. Describe the big picture of your changes here, perhaps using a bullet list if multiple changes are done to accomplish a single goal. If it accomplishes multiple goals, it would be best to create separate PR's for each.

Type of change

What types of change is it? Select the appropriate type(s) that describe this PR

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (non-backwards-compatible fix or feature)
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Documentation update
• Other (please describe)

Testing

Explain the steps needed to test the new code to verify that it does indeed address the issue and produce the expected behavior.

Checklist

Put an x in the boxes that apply.

• [ ] I have run unit and regression tests which pass locally with my changes
• [ ] I have added new tests that prove my fix is effective or that my feature works
• [ ] I have added necessary documentation

[bbrelje]

Do you actually want a code review or was the request autogenerated?

[eytanadler]

It's autogenerated since I can't remove openconcept_maintainers as a reviewer when I open the PR. Sorry about the emails!