stm32g0b1: USB driver does not have vbus detection

[drbartling]

usb::Driver::new() does not take an input pin for vbus detection.
Without vbus detection we are unable to get a Disconnect error from read_packet().

As application currently need to use timeouts to check for disconnection and these can't be guaranteed to give correct results at all times.

To fix this, we want to add an Option<ExtiInput> to the usb::Driver::new() function call as a breaking change.

References:
https://matrix.to/#/!YoLPkieCYHGzdjUhOK:matrix.org/$Dh-en2iZjDp-z_24twqmlorKo0lPJsk9RupKxCdHOlk?via=matrix.org&via=beeper.com&via=mozilla.org

[seijikun]

Got the same problem with self-powered ESP32S3 devices.
This describes how that's normally handled in esp-idf.