Additional features

[WraySmith]

• allow the user to automatically request all recall numbers from a query, either by creating a request_all() style function(s) or adding an argument such as request_all = TRUE to the existing query functions
• more detailed error in call_vrd_api()
• modify so that the query returns a maximum limit with repeated calls to the API instead of one very large call, this requires implement pagination and rate limits on the calls which is 60/min