Provisioning : Create an organisation before the app

For loraserver provisioning, an organization should be created before the application. For now, the organization id is statically assigned to the post call of app creation and set to "1".

changed milestone to %1.0

added loraserver label

added Orchestrator label

assigned to @RmManeschi

mentioned in merge request !52 (merged)

closed via commit d3e562e4

closed via commit add252b3

closed via merge request !52 (merged)