Implements a Set based on a Dictionary (which is equivalent of non-genric HashTable) This will give the best lookup, add, and remove performance for very large data-sets, but iteration will occur in no particular order.

<SerializableAttribute> _
Public Class HashedSet(Of T) _
	Inherits DictionarySet(Of T)

[SerializableAttribute]
public class HashedSet<T> : DictionarySet<T>

[SerializableAttribute]
generic<typename T>
public ref class HashedSet : public DictionarySet<T>