HORNET-2.0.0-alpha9

Changed

- Adapt storage layer to new milestone ID based logic. (#1454)
- Handle SolidEntryPoints in solidification logic. (#1454)
- Enforce milestone msg nonce zero in attacher. (#1454)
- Add new milestone routes. (#1454)
- Adapt node info endpoint to latest changes. (#1454)
- Added BaseToken to config, restapi and INX. (#1462)
- Add check to verify that milestone index and timestamp have increased. (#1463)

Fixed

- Only refresh tips on remote pow if no parents were given. (#1460) 
- Fix database tool getMilestonePayloadViaAPI. (#1454)

Cleanup

- Chore/remove deprecated code. (#1461)