added more functions from original code, added macro

src/interfaces/mod.rs

@@ -4,7 +4,7 @@ use crate::proto_gen::phonemetadata::PhoneNumberDesc;
 /// implementation of the matcher and allow different implementations to be
 /// swapped in easily.
 
-pub(crate) trait MatcherApi {
+pub(crate) trait MatcherApi: Send + Sync {
   /// Returns whether the given national number (a string containing only decimal
   /// digits) matches the national number pattern defined in the given
   /// PhoneNumberDesc message.