* Move existing address/bannedAddress functionality to a new addressStore object.
* Implement TestAddressManager.
* Implement serializeAddressKey and deserializeAddressKey.
* Implement serializeNetAddress and deserializeNetAddress.
* Store addresses and banned addresses to disk.
* Implement restoreNotBannedAddresses.
* Fix bannedDatabaseKey.
* Implement restoreBannedAddresses.
* Implement TestRestoreAddressManager.
* Defer closing the database in TestRestoreAddressManager.
* Defer closing the database in TestRestoreAddressManager.
* Add a log.
* Return errors where appropriate.
Co-authored-by: Elichai Turkel <elichai.turkel@gmail.com>
