Spatial curtailment

[ppinchuk]

Refactor curtailment to allow spatially-explicit curtailment options via project points input. The new curtailment functions very similar to the SAM config input now.

Unfortunately this minorly breaks the existing curtailment specification method. Namely, users could previously input the curtailment config directly like so:

"curtailment":  {
    "dawn_dusk": "nautical",
    "months": [4, 5, 6, 7],
    "probability": 1,
    "wind_speed": 10.0,
}

In the updated version, users will have to assign the configuration a name, like so:

"curtailment":  {
    "main_curtailment": {
        "dawn_dusk": "nautical",
        "months": [4, 5, 6, 7],
        "probability": 1,
        "wind_speed": 10.0,
    }
}

The latter allows specifying multiple curtailment configs (which is required to perform spatially-explicit curtailment:

"curtailment":  {
    "main_curtailment": {
        "dawn_dusk": "nautical",
        "months": [4, 5, 6, 7],
        "probability": 1,
        "wind_speed": 10.0,
    },
    "other_curtailment": "/path/to/other/curtailment.json"
}

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 90.60403% with 14 lines in your changes missing coverage. Please review.

Project coverage is 87.64%. Comparing base (7dd83c5) to head (14a0f11).

Files with missing lines	Patch %	Lines
reV/config/project_points.py	75.00%	12 Missing ⚠️
reV/utilities/curtailment.py	84.61%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #513      +/-   ##
==========================================
+ Coverage   87.57%   87.64%   +0.06%     
==========================================
  Files         122      122              
  Lines       18234    18369     +135     
==========================================
+ Hits        15969    16099     +130     
- Misses       2265     2270       +5     

Flag	Coverage Δ
unittests	87.64% <90.60%> (+0.06%)	⬆️

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[ppinchuk]

This PR also addresses #515