Participant parameters

[KonradBreitsprecherBkd]

Get the actual values of SIL Kit parameters that are set by public API and possibly overwritten by the participant configuration.

Instead of a seperate interface per parameter, a enum is handed in specifying which parameter should be obtained:

auto GetParameter(SilKit::Parameter parameter) -> const std::string& override;

Currently, the participantName and registryURI are available:#

enum class Parameter : SilKit_Parameter
{
    //! An undefined parameter
    Undefined = SilKit_Parameter_Undefined,
    //! The name of the participant
    ParticipantName = SilKit_Parameter_ParticipantName,
    //! The registry URI
    RegistryUri = SilKit_Parameter_ReistryUri,
};

Any more parameters?

How to deal with non-string parameters?