1arrayfields allow keyword access to array instances.
2arrayfields works by adding only a few methods to arrays,
3namely #fields= and fields, but the #fields= method is
4hooked to extend an array on a per object basis.In
5otherwords __only__ those arrays whose fields are set
6will have auto-magical keyword access bestowed on
7them - all other arrays remain unaffected.arrays with
8keyword access require much less memory when compared
9to hashes/objects and yet still provide fast lookup and
10preserve data order.
11