rio split in different projects

- split init RIO-50
- eto stuff RIO-49
- AbstractRioTest RIO-50
- AbstractRioTest RIO-50
- kdo os => eto os RIO-50
- rio kdo => kdo RIO-50
- rio bdo => bdo RIO-50
Merge pull request #26 from objectos/rio_50_split

RIO_50: Split