Merge pull request #851 from adrian-rosello/ofertie/change-netslection-logic

Ofertie/change netslection logic
QoSPolicyRequest to CircuitRequest parser.
Update allocateFlow method in NCLProvisioner.
Update deallocate method in NCLProvisioner.
Update update-method in NCLProvisioner.
Remove unused networkId.
Networkselector no longer depends on request
Exceptions for circuits in GenericNetwork.
CircuitProvisioningCapability throws NotExistingCircuit exception.
NCLProvisioner capability throws CircuitAllocationException.
Merge pull request #855 from adrian-rosello/ofertie/refactor

Exceptions for Circuits in Generic Network.
Merge branch 'ofertie/refactor' of https://github.com/dana-i2cat/opennaas into ofertie/change-netslection-logic
NCLPRovisioner throws correct exceptions.
ReadFlows with parsers.
NCLProvisioner stores CircuitRequests.
Remove NCLController.
Remove NCLMonitoring.
Remove requestToFlowsLogic and NCLModelHelper.
Remove pathfinder.
Remove API model.