Update choropleth maps

[clairehalloran]

Summary

Adds adjustText package to environment to avoid label overlap in maps.

Before:

After:

Technical details

Added labels to difference maps in compare_cases.py for both 2-case and multi-case comparison:

Implementation notes

Additional changes

• Squashed a bug that didn't simplify techs to their maptechs groups in plot_diff_maps function in reedsplots.py

Switches added/removed/changed

Issues resolved

Known incompatibilities

Relevant sources or documentation

Validation, testing, and comparison report(s)

Checklist for author

Details to double-check

• Charge code provided to reviewers
• Included comparison reports for appropriate test cases
• Documentation updated if necessary
• Code formatting standardized
• Reusable functions used where possible instead of copy/pasted code

General information to guide review

• Zero impact on results of default case
• No large data file(s) added/modified
• No substantive impact on runtime for full-US reference case
• No substantive impact on folder size for full-US reference case
• No change to process flow (runreeds.py, reeds/core/solve/solve.py)
• No change to code organization
• No change to package requirements (environment.yml or Project.toml)

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