refs #404, and discussion https://dev.vatsim-germany.org/issues/404#note-8
* Changed CSimulatorSetup to use CNameVariantPairList as data. The old version was an hack and had to go, CNameVariantPairList would allow complex types in the future and can be already shown in the GUI.
* CNameVariantPairList was improved slightly in the same step
* Functions to get CSimulatorSetup from driver / context
* Removed CSimulatorSetup data from CSimulatorPluginInfo
* Specialized formatters (e.g. for bool, for PQs etc.) allow specialized look and feel for each column
* Fixed isValidComFrequency used for formatters
* Changed models to use formatters
* Outdated propertyByIndexAsString methods removed
* During the above tasks: fixed override keyword in some places
* Column tooltips
* refs #323, wrong column name fix
