availability

See also https://github.com/hapi-server/data-specification/wiki/file-listings

Recommended dataset naming is to end it with "DATASET/filelist", e.g., "MyDataset/filelist" (not "filelist/MyDataset"), and also add "x_parameterSchema="filelist" in the info response.

We start with a base class which is just a "Listing of Times":

• time isotime

"Availability" required elements:

• startDate - start date/time of coverage (isotime, required)
• stopDate - (isotime) stop date/time of coverage; exclusive (like HAPI request end times)

Optional and recommended elements:

• numberRecords (int)
• numberValidRecords (means number records not all fill parameters)
• version (str)
• PARAMETER_NAME/numberValidRecords ???