paths under HardwareTapesDevices is an array but not wrapped by 'items'

[tenortim]

I tried to generate Go bindings using Swagger/OpenAPI and it generated bad code (ErrorUnknown) for the HardwareTapesDevices API type. I subsequently discovered swagger-go and using that, it has found several more conformance issues of which this is the first:

2019/03/19 12:01:01 validating spec ./isi_8.0.0.7.config
The swagger spec at "./isi_8.0.0.7.config" is invalid against swagger specification 2.0. see errors :
- type in definitions.HardwareTapesDevices.properties.media_changers is required
- "definitions.HardwareTapesDevices.properties.media_changers.items" must validate at least one schema (anyOf)
- items in definitions.HardwareTapesDevices.properties.media_changers.items is required
- items in definitions.HardwareTapesDevices.properties.media_changers.items.properties.paths is required
- type in definitions.HardwareTapesDevices.properties.tapes is required
- "definitions.HardwareTapesDevices.properties.tapes.items" must validate at least one schema (anyOf)
- items in definitions.HardwareTapesDevices.properties.tapes.items is required
- items in definitions.HardwareTapesDevices.properties.tapes.items.properties.paths is required

PR to follow, once I can get the Python to mangle the JSON to match my manual fix!