• Added: main static helpers on AnyScheduler for dispatch queues, operation queues, and run loops, so that you can shorten, for example, DispatchQueue.main.eraseToAnyScheduler() to .main in many cases.
• Changed: static immediateScheduler helpers have been shortened to immediate, and new, static immediate helpers have been defined directly on AnyScheduler so that you can simply pass .immediate to endpoints expecting an AnyScheduler.
• Changed: static testScheduler helpers have been shortened to test.