Precession and memory fixes in DistRot for ReadOrbitData use

[deitrr]

Proposed changes

This fixes memory issues in DistRot when ReadOrbitData is used and adds the ability to force precession in that case.

Types of changes

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• [x ] Bugfix (non-breaking change that fixes an issue)
• [x ] New feature (non-breaking change that adds functionality)
• New module (non-breaking change that adds a new module)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update

Checklist

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• I have added tests that prove my fix is effective or that my feature works
• I have adhered to the Style or run the clang format code shown here
• I have added necessary documentation (if appropriate)
• I have run Valgrind on new tests to ensure no errors were found
• (Optional) I have added an example showcasing the new change

Further comments

Sorry about any white space changes!