#41 Add "Serializable" to classes to avoid "NotSerializableException" in Jasper

[Marciel Degasperi]

I get a problem running a Jasper Report, with a Code128 barcode, enabling Jasper Virtualizer. This error has the same as this link:
https://community.jaspersoft.com/questions/536153/problem-jrswapfilevirtualizer-and-barbecuelinearcode128
In my case, I decided to add a "serializable" interface in the classes Module, CharBuffer and Accumulator and solve my problem.
Can it be officially added to the project?

Also, is it possible to replace the Accumulator class with the native AtomicInteger class?