Upload a job description for parsing

Uploads a job description for parsing.
When successful, returns an identifier in the response for subsequent use with the /job_descriptions/{identifier} endpoint to check processing status and retrieve results.
Job Descriptions can be uploaded as a file or a URL. In addition, data can be added directly if users want to upload directly without parsing any resume file. For uploading resume data, the data argument provided must be a JSON-encoded string. Data uploads will not impact upon parsing credits.