Fixed circularity issues for CO and MO

[mitchellpound]

• make format and make documentation has been run.

Bug fix

This is to fix the circularity errors mentioned in issue #64

What this fixes and how it's fixed

The main problem was from the state_income_tax variable.

CO fixes:

• Changed out the tax variables to be more consistent with the 2022 worksheet found here.
• Switched out variables that reference current income tax such as state_income_tax for variables that reference last year's .

MO fixes:

• Changed state_income_tax for prior_year_state_income_tax_paid to break the circularity.

For both CO and MO I updated the baseline unit test variables to reflect those used in formula definitions.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (66c48e7) 98.37% compared to head (17e52bc) 98.37%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #67      +/-   ##
==========================================
- Coverage   98.37%   98.37%   -0.01%     
==========================================
  Files        1773     1773              
  Lines       26463    26462       -1     
  Branches      176      176              
==========================================
- Hits        26034    26033       -1     
  Misses        398      398              
  Partials       31       31              

Flag	Coverage Δ
unittests	98.37% <100.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
...states/co/tax/income/additions/co_state_addback.py	100.00% <100.00%> (ø)
...income/taxable_income/mo_net_state_income_taxes.py	100.00% <100.00%> (ø)
...ariables/gov/states/tax/income/state_income_tax.py	100.00% <ø> (ø)

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[rickecon]

@mitchellpound. This looks great. I ran all the test locally on my machine as well. Everything passes. I submitted a PR to your branch that updates the version in setup.py and adds new entries to the CHANGELOG.md and changelog.yaml files. Once you merge that into your branch, I'll merge this PR.

[mitchellpound]

@rickecon Thanks! Just merged in your PR with the version and change log stuff.

[rickecon]

@mitchellpound. Thanks Mitch. Looks great. Merging.