Macro impl_time_zone_bcp47_to_iana_v1

macro_rules! impl_time_zone_bcp47_to_iana_v1 {
    ($ provider : ty) => { ... };
}

Implement DataProvider<Bcp47ToIanaMapV1Marker> on the given struct using the data hardcoded in this file. This allows the struct to be used with icu’s _unstable constructors.