JDBC In-Outputformat for new API

I ported the JDBC Formats to the new API. (both formats, tests for each and an example).

The outputformat only supports a number of types, currently these

```
private enum supportedTypes {
        Boolean,
        Byte,
        Short,
        Integer,
        Long,
        String,
        Float,
        Double
    }
```

Are there others i should add, like ValueTypes?