Monthly report data endpoint

Is your feature request related to a specific question or information need? Periodically, the following questions about the use of Bravo for the most recent couple of months are asked:

How many ....

new registered users?
total registered users?
total users with API access?
active users per day?
active users per month?

Describe the solution you'd like An API endpoint that provides the answers to the above questions in json. e.g.:

{                                                                                                                                           
  "new registered users": 50,                                                                                                               
  "total registered users": 1000,                                                                                                           
  "total users with API access": 25,                                                                                                        
  "active users per day": 10,                                                                                                               
  "active users per month": 100                                                                                                             
}

Such that one could get the answer from the command line with something like:

curl https://my.bravo.host/api/use_report

Additional context Provide data for reports generated by @tblackw

statgen / bravo_api

Monthly report data endpoint #6