#3 Add enum support to ComplexBean2MapConversion

[Jeff Mark]

The following patch adds support of custom enum types to be converted to a map and back. This was one thing that we needed in our use of sojo. I could have added a separate add-on conversion class for this, but thought it made more sense to include with the ComplexBean2Map and IterableMap2Bean conversion classes.

Thanks for making such a great project, this really came in handy.

-Jeff

[Jeff Mark]

add support for Enum types