* coap: refactoring transport (*.yml) * coap: refactoring transport (*.yml) -2 * lwm2m: delete the parameter that is not used * coap: refactoring service as PE * coap: refactoring service as PE * coap: refactoring dtlsSettings as PE * coap: refactoring dtlsSettings as PE * coap: refactoring dtlsSettings as PE-3