feat(interfaces): add IDbVehicle interface

Add a new interface called `IDbVehicle` in the interfaces module. The `IDbVehicle` interface includes properties such as `id`, `plate_number`, `model_id`, `odometer`, and `health_state` for defining a vehicle object in our database.

Issue: #20
Signed-off-by: Mathis <yidhra@tuta.io>

src/interfaces/database/IDbVehicle.ts

@@ -0,0 +1,7 @@
+export interface IDbVehicle {
+	id?: string;
+	plate_number: string;
+	model_id: string;
+	odometer: number;
+	health_state: number;
+}