TIsUECoreVariant

Traits class which tests if a type is a core variant type (e.g. FVector, which supports FVector3f/FVector3d float/double variants. Can be used to determine if the provided type is a core variant type in general: e.g. TIsUECoreVariant::Value == false TIsUECoreVariant::Value == true and also to determine if it is a variant type of a particular component type: e.g TIsUECoreVariant::Value == false TIsUECoreVariant::Value == true