Changes to GET /api/v1/:context_id/profile

added the non-success response with the status 503

added the optional property dynamic/items/entity to the response with the 200 status

added the optional property dynamic/items/entityType to the response with the 200 status

added the optional property preferences/items/entity to the response with the 200 status

added the optional property preferences/items/entityType to the response with the 200 status

added the optional property static/items/entity to the response with the 200 status

added the optional property static/items/entityType to the response with the 200 status

added the required property selfFacts to the response with the 200 status