createResultDataModel should always create the databaseMetadata table

[anthonysena]

Strategus::createResultsDataModelSettings allows for the specification of a resultsFolder to use when creating the results data model. However, sometimes we'd like to set up the schema to hold the results data model before results are generated. This can be done by passing in an empty directory (which isn't great) and when calling Strategus::createResultDataModel the data model is created except for the database_meta_data table:

Warning message:
In .createDatabaseMetadataResultsDataModel(resultsConnectionDetails = resultsConnectionDetails,  :
  DatabaseMetaData not found - skipping table creation

[anthonysena]

Keeping some notes on the ways in which we are creating the results data model by module:

• Char, CD, CG, CM, PLP, PLPV, SCCS: uses its own package directly to create the results model tables.
• CI, ES, TP - uses its rdms file in Strategus to create the results model tables.

So. the resultsFolder from Strategus::createResultsDataModelSettings isn't necessary when creating the results model. Since settings created from calling Strategus::createResultsDataModelSettings are used by both the results model creation function and upload function, we'll only require and use resultsFolder when performing the upload function.