Autodetect integer type vs long type using maximum/minimum rules

[maksimlikharev]

there is not much slack for the long usage, you either force everything to it or use format "utc-millisec"

json schema provides hint,
"minimum" and "maximum"

would be nice to use it and generate data type appropriately.

[benjefferies]

@joelittlejohn I have implemented the logic for this enhancement. I can raise a pull request to get this merged back in if you're happy with that. Have ran "mvn install" locally and all tests are passing including the tests I have added.