FTN3: iface definition, updated and prepared for release 1.0
FTN6&7: updated for release
Final release of FTN3 v1.0, FTN6 v1.0, FTN7 v1.2

- FTN3: FutoIn Interface Definition
- FTN6: FutoIn Executor Concept
- FTN7: FutoIn Invoker Concept