Add libusb_wrap_sys_device() #386

This is useful for Linux and Android. It is also discussed in #285.

https://libusb.sourceforge.io/api-1.0/group__libusb__dev.html#ga98f783e115ceff4eaf88a60e6439563c
int libusb_wrap_sys_device (libusb_context *ctx, intptr_t sys_dev, libusb_device_handle **dev_handle)
Must call libusb_set_option(NULL, LIBUSB_OPTION_WEAK_AUTHORITY) or before libusb_init if don't have authority to access the usb device directly.