Changes to Search for academic papers

added the optional property error/details to the response with the 400 status

added the optional property error/details to the response with the 401 status

added the optional property error/details to the response with the 402 status

added the optional property error/details to the response with the 403 status

added the optional property error/details to the response with the 500 status

the code response property const value insufficient_quota was added for the status 402

added the optional property error/sessionId to the response with the 400 status

added the optional property error/sessionId to the response with the 401 status

added the optional property error/sessionId to the response with the 402 status

added the optional property error/sessionId to the response with the 403 status

added the optional property error/sessionId to the response with the 500 status

added the required property papers/items/fullTextUrl to the response with the 200 status

added the required property papers/items/journalQuartile to the response with the 200 status

added the required property papers/items/studyTypeTags to the response with the 200 status

endpoint added