(vicare containers sets-and-bags) implements sets
and bags; sets and bags (also known as multisets) are unordered
collections that can contain any Scheme object.
This library is actually the reference implementation of SRFI-113
adapted to Vicare. The library exports the same syntactic
bindings of the library
(srfi :113 sets-and-bags). SRFI-113 sets and bags, for the documentation.