Converted EnumurableUtils to Enumrable extend via monkey patching
Implemented divisible_by? extend for Fixnum
Reimplemented MultiplesEnumerator using divisible_by? extend
Added unless method already defined check to Fixnum.divisible_by?
Added a multiples extend for Integer
Renamed Fixnum extend to Integer extend to provide extend to Bignum
Re-implemented problem 1 using new extends