Support MET input data that contains uppercase header names

[bikegeek]

Describe the Problem

There are some instances when MET output can be directly used as input to METplotpy without peforming reformatting via METdataio. MET headers are in uppercase, but the METplotpy code is expecting lowercase headers, based on METviewer database query results.

Provide a mechanism within the METplotpy code that will support uppercase header names in common code that will provide this support for all plots under METplotpy/metplotpy/plots.

Expected Behavior

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Environment

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To Reproduce

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4. See error
Post relevant sample data following these instructions:
https://dtcenter.org/community-code/model-evaluation-tools-met/met-help-desk#ftp

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• Select Milestone as the next bugfix version
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Define Related Issue(s)##

Consider the impact to the other METplus components.

• METplus, MET, METdataio, METviewer, METexpress, METcalcpy, METplotpy

Bugfix Checklist

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• Close this issue.