Add a test case for explicitly for a number larger than 2^60

test/jiffy_03_number_tests.erl

@@ -49,6 +49,7 @@ cases(ok) ->
         {<<"12">>, 12},
         {<<"-3">>, -3},
         {<<"1234567890123456789012345">>, 1234567890123456789012345},
+        {<<"4611686018427387904">>, 4611686018427387904},
         {<<"1310050760199">>, 1310050760199},
         {
             <<"1234567890123456789012345.0">>,