Merge branch 'refactor' into 'master'

ciena/6500/6500.swagger.json

ciena/6500/6500.swagger.new.json

ciena/6500/6500.swagger.yml

ciena/6500/6500_12.1.swagger.json

ciena/6500/6500_12.3.swagger.json

ciena/6500/yang12.1/ciena-6500-adjacencies.yang

ciena/6500/yang12.1/ciena-6500-alarms.yang

ciena/6500/yang12.1/ciena-6500-almprofile.yang

ciena/6500/yang12.1/ciena-6500-ampmons.yang

ciena/6500/yang12.1/ciena-6500-amps.yang

ciena/6500/yang12.1/ciena-6500-channel-control.yang

ciena/6500/yang12.1/ciena-6500-comms.yang

ciena/6500/yang12.1/ciena-6500-debuglog.yang

ciena/6500/yang12.1/ciena-6500-diagnostic.yang

ciena/6500/yang12.1/ciena-6500-disps.yang

ciena/6500/yang12.1/ciena-6500-encryption.yang

ciena/6500/yang12.1/ciena-6500-enums.yang

ciena/6500/yang12.1/ciena-6500-equipment.yang

ciena/6500/yang12.1/ciena-6500-events.yang

ciena/6500/yang12.1/ciena-6500-idlers.yang