Allow no model

[tsnyder0]

Allow No Model

Note:
Rebased onto docs_typos for ease of merging documentation edits.
Separate pull request coming soon.

Description

The changes made will allow for pyfhd runs to be completed without a model. Running without a model would create dirty images without any calibration.

Motivation and Context

To run without a model, changes needed to be made to the code to allow this.

Closes #92 #93 #94 #95

Types of Changes

• Bug Fixes
• New Feature(s)
• Breaking Changes
• Documentation
• Version Change
• Translation from FHD
• Build or CI Change

Changelog

New Features

Feature allows you to run with no model to bypass calibration and just create dirty images.

Test Changes

• Any new tests added mention them here
• Any changes to existing tests and the reasons for why they have been changed also noted.

Documentation

Information about running without a model was added to the documentation

Version

Checklist

General PR Checklist

• I have read the contribution guide
• Add all the above to the [Changelog]

New Features Checklist

• New Features have all new functions documented using the numpydoc docstring format
• Updated an existing tutorial or created a tutorial to use the new feature in the documentation
• Have added new tests or changed existing tests to cover the new feature

Existing Tests Checklist

• If some tests fail and they are meant to, have they been changed? if so mention the exact tests that were changed and why here
• Have the changes to existing tests been documented either through comments, changes to the docstring in ether the test or the associated functions?

Documentation Checklist

• The documentation is able to build successfully with any new changes and they are visible in your own build

Version Checklist

• Updated the changelog to put all the previous unreleased changelog into a version
• Noted dependency changes since the last version

[codecov]

Codecov Report

❌ Patch coverage is 0% with 43 lines in your changes missing coverage. Please review.
✅ Project coverage is 39.66%. Comparing base (2815ab5) to head (6d50da0).
⚠️ Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
src/pyfhd/io/pyfhd_quickview.py	0.00%	18 Missing ⚠️
src/pyfhd/healpix/healpix_utils.py	0.00%	12 Missing ⚠️
src/pyfhd/pyfhd.py	0.00%	12 Missing ⚠️
src/pyfhd/beam_setup/beam_utils.py	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #105      +/-   ##
==========================================
- Coverage   39.75%   39.66%   -0.09%     
==========================================
  Files          30       30              
  Lines        5728     5748      +20     
  Branches     1064     1076      +12     
==========================================
+ Hits         2277     2280       +3     
- Misses       3141     3158      +17     
  Partials      310      310              

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[bhazelton]

This is looking good. I ignored the changes in the docs folder as those will go in a separate PR and just focused on the code changes.