Move the harmonic preprocessing to METcalcpy

[CPKalb]

Describe the Enhancement

The harmonic pre-processing currently lives in METplus under the RMM use case. However, it should live in the pre-processing area of METcalcpy. It needs to be moved here and the import statements updated

Time Estimate

1 day

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Funding Source

2793541

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Define Related Issue(s)

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

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