boggleNet

1) using System.Collections.Generic;
2) 
3) namespace Boggle
4) {
5)     /// <summary>

6)     /// Equality comparer used for HashSet. Used to compare two words in the hash set and detect collisions.
7)     /// This is needed because we are making HashSet with a custom type and .NET will use expensive
8)     /// procedure to determine a unique hash (by treating it as an Object instance) if this is not provided.