v3.5.0-snapshot

This release includes the following features:

• #414 Implement the DAO layer for Settlements: mojaloop/project#414
• #416 Implement the settlement API: mojaloop/project#416

Functionality:

1. Basic Settlement Window management (Close and Open new Windows)
2. Create new Settlement, and associate Settlement Windows management
3. Update Settlement with settlement acknowledgements
4. Query SettlementWindows
5. Query Settlements