Implement IList and IList<T> for LinearAlgebra.Generic.Vector<T>
Improvements to Vector<> IList/IList<> implementation to better match Array behavior
LA: Regroup Vector IList implemenation, fix portable build
LA: Generic Vector: Extract BCL interfaces to partial class
Merge extended pull request #85 from scottstephens/ilist_implementation
LA: Vectors: delegate GetHashCode fully to storage