IImageWrapperModule::ConvertRGBFormat

Convert an ImageWrapper style {ERGBFormat+BitDepth} into an ERawImageFormat for [FImage](API\Runtime\ImageCore\FImage) returns [ERawImageFormat::Invalid](API\Runtime\ImageCore\ERawImageFormat__Type) if no mapping is possible bIsExactMatch is filled with whether the formats are an exact match or not if not, conversion is needed