Is your feature request related to a problem? Please describe.

A clear and concise description of what the problem is.
I want to schedule a monthly recurring message at a particular time. A simple use case would be when I want the bot to remind me to pay my credit card bills on a particular date for every month.

Describe the solution you'd like

It would be nice to have a function along the lines of:
job_queue.run_monthly(callback, day_of_month, time, context=None, name=None) that a developer can just call to run monthly jobs.

Describe alternatives you've considered

The alternative would be to write the code for it yourself, which makes your code more lengthy. It would be helpful if it came along with this wrapper