scripts and network apps modified

...samples/network_app_invoker_sample/network_app_invoker.py

scripts/invoker_capif_connector.py

scripts/invoker_capif_connector_offboarding.py

scripts/invoker_capif_connector_update.py

scripts/invoker_service_discovery.py

scripts/invoker_service_get_token.py

scripts/provider_capif_connector.py

scripts/provider_capif_connector_offboarding.py

scripts/provider_capif_connector_update.py

scripts/provider_get_all_published_api.py

scripts/provider_get_published_api.py

scripts/provider_publish_api.py

scripts/provider_unpublish_api.py

scripts/provider_update_api.py