Correct the implementation of int Add(object value) so that it matches the interface specification as per https://msdn.microsoft.com/en-us/library/system.collections.ilist.add(v=vs.110).aspx
Correct the implementation of int Add(object value) so that it matches the interface specification as per https://msdn.microsoft.com/en-us/library/system.collections.ilist.add(v=vs.110).aspx

rusanov-vladimir/Live-Charts,beto-rodriguez/Live-Charts,henninltn/Live-Charts