Tests first for Issue #1
Test passed for writer. Issue #1
Tests pass on BoundBoxProcessor, no changes in library.
TDD. Tests created for issue #2
Issue #2. Correct getter cast before returning result.
Add tests for non static fields as well. Issue #2
Changed imports to set better than lists to prevent conflicts. Issue #2
extra fields feature

- new @BoundBoxField annotation
- add extraFields in @BoundBox annotation
- BoundBoxProcessor changed to parse extra fields
- Test : processor, writer, integration.