pyusb isoc transfer under Windows, macOS and Linux

So far I have not been able to get pyusb isoc transfer to work under macOS and Windows. On Windows I think libusb-1.0 itself has some issues. So I will test out macOS and Linux first.

I am using Cyusb FX3 known good Firmware isoloop and isosrcsink. https://github.com/hantianjz/cy_fx3_sdk/tree/master/cyusb_linux_1.0.5/fx3_images

Issues:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/homebrew/lib/python3.9/site-packages/usb/core.py", line 408, in write
    return self.device.write(self, data, timeout)
  File "/opt/homebrew/lib/python3.9/site-packages/usb/core.py", line 979, in write
    return fn(
  File "/opt/homebrew/lib/python3.9/site-packages/usb/backend/libusb1.py", line 874, in iso_write
    return handler.submit(self.ctx)
  File "/opt/homebrew/lib/python3.9/site-packages/usb/backend/libusb1.py", line 680, in submit
    _check(_lib.libusb_submit_transfer(self.transfer))
  File "/opt/homebrew/lib/python3.9/site-packages/usb/backend/libusb1.py", line 604, in _check
    raise USBError(_strerror(ret), ret, _libusb_errno[ret])
usb.core.USBError: [Errno 2] Entity not found

[mcuee]

Some testing results under Windows with libusb-1.0.26rc1. Isoc transfer seems to work now under Windows with libusbk driver. https://github.com/libusb/libusb/issues/1099

[mcuee]

@jonasmalacofilho I think the staging tree is good. As for the following, hopefully you can fix it.

we also seem to have a new finalizer bug, at least when something else goes wrong.

@tormodvolden I have add the C example and issue here. Please take a look if the C code is correct or not. Thanks. https://github.com/libusb/libusb/issues/1104#issuecomment-1084586649