Create NCLModel holding NCL required data.
Use NCLModel in Provisioner

NCLProvisioner uses NCLModel to hold allocatedFlows and allocatedCircuits.

NCLModel bean is instantiated and injected to NCLProvisioner by blueprint.
Inject shared NCLModel into RequestToFlows logic and into PathFinderMockup.
Fix ProvisionerLogic unit test by instantiating required NCLModel.
Merge pull request #761 from isartcanyameres/feature/ncl-model

Feature/ncl model