MeasureQualifierCode definitions

[cristinamullin]

Is your feature request related to a problem? Please describe.

Users currently need to know the definitions of each MeasureQualifierCode to filter. We can provide those within the application.

Describe the solution you'd like

Leverage TADA WQXMeasureQualifierCodeRef.csv to add definitions for each MeasureQualifierCode. Use TADA_GetMeasureQualifierCodeRef() (https://usepa.github.io/TADA/reference/TADA_GetMeasureQualifierCodeRef.html) to get table.

Describe alternatives you've considered

We could just provide a link to the WQX domain list. https://www.epa.gov/waterdata/storage-and-retrieval-and-water-quality-exchange-domain-services-and-downloads
ResultMeasureQualifier (ZIP) | (XML)| (CSV)

Reminders for TADA contributors addressing this issue

New features should include all of the following work:

• Create the function/code.

• Document all code using comments to describe what is does.

• Create tests in tests folder.

• Create help file using roxygen2 above code.

• Create working examples in help file (via roxygen2).

[cristinamullin]

New solution: remove this from filter tab. We now have a TADA flag for this element. Instead, in the TADA package create a new column with the definition as part of this flag function. That definition should be the removal reason for anything flagged for removal by this flag.

[cristinamullin]

Removing this issue here & including an issue for the TADA package instead: USEPA/EPATADA#358