Make more member functions in CollectionNotifier pure virtual
Make more member functions in CollectionNotifier pure virtual

realm/realm-core,realm/realm-core,realm/realm-object-store,realm/realm-object-store,realm/realm-js,realm/realm-core,realm/realm-js,realm/realm-js,realm/realm-js,realm/realm-core,realm/realm-core,realm/realm-core,realm/realm-core,realm/realm-js,realm/realm-js,realm/realm-js,realm/realm-js,realm/realm-js,realm/realm-object-store