Should support implicit conversion from the supported values (e.g. std::string, bool, Color)
Should be named something more generic, like osc::Variant or osc::AppVariant to reflect that fact that it's a serializable variant type that can be used independently of AppSettings
Broken out from #782
std::string,bool,Color)osc::Variantorosc::AppVariantto reflect that fact that it's a serializable variant type that can be used independently ofAppSettings