Add data-driven wholesale market object creation tool

[saraborc]

This PR adds a model for simulating market dynamics.

Current issues

None

Code changes

• Add python_extras/market_model.py

Documentation changes

• Add /Utilities/Market_model

Test and Validation Notes

• Add python_extras/example/market_model.glm

[dchassin]

@saraborc, looks good so far. I merge market_data tool and added CAISO data to example. However, running the example generates an error:

% gridlabd market_model.glm
ERROR [market_model]: all the input array dimensions for the concatenation axis must match exactly, but along dimension 0, the array at index 0 has size 12 and the array at index 5 has size 0
#error market_model all the input array dimensions for the concatenation axis must match exactly, but along dimension 0, the array at index 0 has size 12 and the array at index 5 has size 0
ERROR    [INIT] : GldMain::subcommand(format='%s/gridlabd-%s',...): command '/usr/local/opt/gridlabd/4.2.30-220303-develop_add_market_model/bin/gridlabd-python -m market_model -f=caiso_20220222-20220223.csv -i=LMP -o=MW -k=24 -l=3
' returns code 3

[saraborc]

@dchassin I think it's fixed now! Works on my comp, but let me know if you still have any issues