feat(core): make TrackByService publicly available

npm/ng-packs/packages/core/src/lib/services/index.ts

@@ -3,7 +3,8 @@ export * from './auth.service';
 export * from './config-state.service';
 export * from './lazy-load.service';
 export * from './localization.service';
+export * from './profile-state.service';
 export * from './profile.service';
 export * from './rest.service';
-export * from './profile-state.service';
 export * from './session-state.service';
+export * from './track-by.service';