Allow to quer api on how many meetings requests per day an account has left

This FR concerns the fact that there is a rate limit for meeting requests of 100 per day.

We use the api to create meetings. We want to implement a feature with which several meetings can be created at once (at once meaning, for the user on our side doing one action - of course the meetings will have to be created one after the other…). Before we start a batch of creating, say, 20 new meetings, we would like to query if there are still 20 requests left for us for that day. Our application may not be the only application which places meeting requests for this account, hence, even if we track our own activity, there is no way for us to know how many requests any particular account still has for any given day.

It would be great if we could query the api on how many meeting requests a particular account has left for the current day.