addEntity method
Add a PlayStoreEntity to the repository, cached
Implementation
@override
Future<PlayStoreEntity> addEntity(String documentID, PlayStoreEntity value) {
  return reference.addEntity(documentID, value);
}Add a PlayStoreEntity to the repository, cached
@override
Future<PlayStoreEntity> addEntity(String documentID, PlayStoreEntity value) {
  return reference.addEntity(documentID, value);
}