Update components to used fixed width types

Author: mborland

include/boost/decimal/detail/components.hpp

@@ -53,13 +53,15 @@ struct decimal_components
 
 using decimal32_t_components = impl::decimal_components<std::uint32_t, std::int32_t>;
 
-using decimal_fast32_t_components = impl::decimal_components<std::uint_fast32_t, std::int_fast32_t>;
+using decimal_fast32_t_components = impl::decimal_components<std::uint32_t, std::int32_t>;
 
 using decimal64_t_components = impl::decimal_components<std::uint64_t, std::int32_t>;
 
+using decimal64_fast64_t_components = impl::decimal_components<std::uint64_t, std::int32_t>;
+
 using decimal128_t_components = impl::decimal_components<boost::int128::uint128_t, std::int32_t>;
 
-using decimal_fast128_t_components = impl::decimal_components<boost::int128::uint128_t, std::int_fast32_t>;
+using decimal_fast128_t_components = impl::decimal_components<boost::int128::uint128_t, std::int32_t>;
 
 } // namespace detail
 } // namespace decimal