Replace confusing observed data terminology nonmenColumn and nonmemUnit by datasetColumn and datasetUnit

[sfrechen]

The terminology is confusing. NONMEM is a proprietary software tool and stands for non-linear mixed effects modelling. First, it has nothing to do with data.

Please replace throughout the ReportingEngine:
nonmenColumn --> datasetColumn
nonmemUnit --> datasetUnit

(And yes, it is not a typo by me... it is currently written as "nonmenColumn"...)

Affected files (no warranty for completeness):

• error-checks.R
• messages.R
• uitilities-observed-data.R
• Excel Template (WorkflowInput.xlsx) -> Sheet "tpDictionary"

@Yuri05 @Christoph27 @AnnikaRPS

[Yuri05]

@sfrechen do we need backward compatibility in the dictionaries? I mean: if the new column name is not found: should RE try to find the old column name?
E.g. if the "datasetUnit" column is missing: should RE look for the "nonmemUnit" column?
If yes: data dictionaries in existing RE workflows can be kept AS IS. Otherwise existing datadictionaries need to be adjusted for the new naming.

[sfrechen]

I don't have any RE workflows for R ReportingEngine :-).
But I would guess if we fix it soon... there is virtually no impact since it hasn't been used in a productive way too often.
And to reproduce old results (if there are one), one needs to use anyway the corresponding ReportingEngine version.

Thus: I would say: no backward compatibility needed.

[msevestre]

Thus: I would say: no backward compatibility needed.

WOOT WOOT!!