Jimbe - New localization algorithm

JimbeCore:
- new domain entity "WiFiNetworkSet"
- reimplemented affinity calculation algorithm
- new ISensor method "UpdateSensorDataset" and property HistorySize

JimbeService: modified to support core modification.

Minor bug fixes.

Signed-off-by: ecanzonieri <ecanzonieri@gmail.com>
JimbeService: Database is now persistent and no more deleted on service startup.

Signed-off-by: ecanzonieri <ecanzonieri@gmail.com>