Add Number of Multilateral Sections per Vertical Section parameter [v3.16.1]

[softwareengineerprogrammer]

Description

Add Number of Multilateral Sections per Vertical Section parameter (not supported for AGS) for easier lateral parameterization. See https://gtp.scientificwebservices.com/geophires?geophires-example-id=example_SAM-single-owner-PPA

Testing & Verification

1. Unit tests added in test_well_bores.py
2. Unit tests updated: example_SAM-single-owner-PPA
3. Manual testing: Manually reviewed & verified

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Change Checklist

Observe the following checklist items before and after merging, as applicable.

Before merging:

1. I certify that I am a human and I have manually verified the correctness of the changes in this PR.
2. Add a CHANGELOG entry: 6a355be

After merging:

1. Push tag(s) to GitHub: git push origin refs/tags/v3.16.1
2. Post a change announcement to the GEOPHIRES Change Announcements Discussion (example). Markdown template:

 3.16.1: [Add Number of Multilateral Sections per Vertical Section parameter ](https://github.com/NREL/GEOPHIRES-X/pull/PR-NUMBER) | [release](https://github.com/NREL/GEOPHIRES-X/releases/tag/v3.16.1)

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Self-reviewed in #179