Add migration notice (#15) Marks this package as end-of-life and suggests that users migrate to the core libray in the main Quiver package at https://github.com/google/quiver-dart.
Users of this package should migrate to the core library in the main Quiver package. This code is imported as follows:
import 'package:quiver/core.dart';
Contains functions hashObjects, hash2, hash3, and hash4 that generate high-quality hashCodes for a list of objects, or 2, 3, or 4 arguments respectively.