Updates to income.py + other calibration modules

[jdebacker]

This PR updates the various calibration models. The income.py module now includes a functon to match the gini coefficient of the income distribution. It also updates the associated tests for income.py

[codecov]

Codecov Report

Attention: Patch coverage is 80.45977% with 17 lines in your changes missing coverage. Please review.

Project coverage is 70.75%. Comparing base (956346d) to head (2435444).
Report is 3 commits behind head on main.

Files	Patch %	Lines
ogphl/income.py	84.21%	6 Missing ⚠️
ogphl/utils.py	25.00%	6 Missing ⚠️
ogphl/macro_params.py	81.81%	4 Missing ⚠️
ogphl/calibrate.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main       #9       +/-   ##
===========================================
+ Coverage   56.46%   70.75%   +14.29%     
===========================================
  Files          12       12               
  Lines         356      277       -79     
===========================================
- Hits          201      196        -5     
+ Misses        155       81       -74     

Flag	Coverage Δ
unittests	70.75% <80.45%> (+14.29%)	⬆️

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[jdebacker]

@rickecon I've now fixed the demographics plots. This PR is ready for review and merge.

[rickecon]

@jdebacker. I just submitted a PR to your branch that makes some updates to this PR. I am now just trying to get the current package up on PyPI so it will update automatically.

[rickecon]

@jdebacker. This looks great. Merging now.