Use calculated_point_estimate config value

[drewoldag]

Addresses issue #6

Solution Description

Adds logic to make use of the value of self.config.calculated_point_estimate when it's provided.

Code Quality

• [x] I have read the Contribution Guide
• [x] My code follows the code style of this project
• [x] My code builds (or compiles) cleanly without any errors or warnings
• [x] My code contains relevant comments and necessary documentation

Bug Fix Checklist

• [ ] My fix includes a new test that breaks as a result of the bug (if possible)
• [ ] My change includes a breaking change
  • [ ] My change includes backwards compatibility and deprecation warnings (if possible)

New Feature Checklist

• [x] I have added or updated the docstrings associated with my feature using the NumPy docstring format
• [ ] I have updated the tutorial to highlight my new feature (if appropriate)
• [x] I have added unit/End-to-End (E2E) test cases to cover my new feature
• [ ] My change includes a breaking change
  • [ ] My change includes backwards compatibility and deprecation warnings (if possible)

Documentation Change Checklist

• [ ] Any updated docstrings use the NumPy docstring format

Build/CI Change Checklist

• [ ] If required or optional dependencies have changed (including version numbers), I have updated the README to reflect this
• [ ] If this is a new CI setup, I have added the associated badge to the README

Other Change Checklist

• [ ] Any new or updated docstrings use the NumPy docstring format.
• [ ] I have updated the tutorial to highlight my new feature (if appropriate)
• [ ] I have added unit/End-to-End (E2E) test cases to cover any changes
• [ ] My change includes a breaking change
  • [ ] My change includes backwards compatibility and deprecation warnings (if possible)

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.02% :tada:

Comparison is base (c7d38a4) 99.44% compared to head (c2ffc3c) 99.47%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #7 +/- ## ========================================== + Coverage 99.44% 99.47% +0.02% ========================================== Files 4 4 Lines 180 190 +10 ========================================== + Hits 179 189 +10 Misses 1 1 ``` | [Files Changed](https://app.codecov.io/gh/LSSTDESC/rail_pzflow/pull/7?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=LSSTDESC) | Coverage Δ | | |---|---|---| | [src/rail/estimation/algos/pzflow\_nf.py](https://app.codecov.io/gh/LSSTDESC/rail_pzflow/pull/7?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=LSSTDESC#diff-c3JjL3JhaWwvZXN0aW1hdGlvbi9hbGdvcy9wemZsb3dfbmYucHk=) | `100.00% <100.00%> (ø)` | |

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[drewoldag]

This is out of date. Closing and won't be merged.