- Deprecate Input/Ouput structure in favor of readOnly OAS feature
 - Removed Fragment schemas. Required properties are defined at each request/response
 - Some fixes in descriptions

 - Entity API
 - Subscription API
 - CsourceRegistration API
 - CsourceSubscription API
 - entityOperations API
 - temporal API
 - JSON-LD Context API

fix: JSON schema update and missing unit code

See merge request NGSI-LD/NGSI-LD!8