Added

• Added Map.All(), which returns an iterator that ranges over all key/value pairs in the map.
• AddedMap.Keys() and Values() methods, which return iterators that range over the map's keys and values, respectively.
• Added OrderedSet.All(), which returns an iterator that ranges over all values in the set, in order.
• Added Map.Len() and OrderedSet.Len().
• Added protobuf/configpb and grpc/configgrpc packages as a replacement for the configspec package from dogmatiq/interopspec.

Changed

• Bumped minimum Go version to v1.23.
• [BC] Map is now a struct instead of an actual Go map. Iteration is provided by a new All() method that returns an iterator.
• [BC] Set has been renamed to OrderedSet, and is now a struct instead of a slice. Iteration is provided by a new All() method that returns an iterator.

Removed

• [BC] Removed MapKey type.