Move nucleus core models in models and make controller buildable again

Makefile

controller/app/Store.go

controller/controller.go

controller/interfaces/networkdomain/pndStore.go

controller/interfaces/networkelement/networkElement.go

controller/interfaces/networkelement/networkElementStore.go

controller/northbound/server/auth_interceptor_test.go

controller/northbound/server/configurationmanagement.go

controller/northbound/server/csbi.go

controller/northbound/server/nbi.go

controller/northbound/server/networkElement.go

controller/northbound/server/plugin.go

controller/northbound/server/pnd.go

controller/northbound/server/pnd_test.go

...ller/nucleus/domain/application/service/genericService.go

...cleus/domain/application/service/networkElementService.go

...s/domain/application/service/networkElementServiceMock.go

.../domain/application/service/networkElementService_test.go

...oller/nucleus/domain/application/service/pluginService.go

...r/nucleus/domain/application/service/pluginServiceMock.go