OpenSKOS connector

[nichtich]

Provide a connector to access OpenSKOS API. See https://github.com/CatchPlus/OpenSKOS for the source code. A concept in OpenSKOS JSON is an object with following keys, among others (redundant keys ignored):

• uri: string (URI)
• timestamp": string (YYYY-MM-DDThh:mm:ss.sssZ)
• modified_timestamp: string (YYYY-MM-DDThh:mm:ss.sssZ)
• deleted: boolean
• prefLabel@xx: array of string
• prefLabelAutocomplete@xx: string
• prefLabelSort@xx: string
• altLabel@xx: array of string
• notation: array of string
• broadMatch: array of string (URI)
• related: array of string (URI)
• historyNote@xx: array of string
• scopeNote@xx: array of string
• inScheme: array of URI
• topConceptOf: array of URI
• dcterms_dateAccepted, dcterms_contributor, dcterms_modified, dcterms_dateSubmitted, dcterms_isReplacedByD ...