Udev rules for certtool

[gl-sergei]

certtool is using easyhid which in turn is using hidapi-libusb on Linux systems, which requires an access to /sys/bus/usb/devices/.... In order to make it work (on Arch in my case), I had to add following rules:

ACTION=="add|change", SUBSYSTEM=="usb", ATTRS{idVendor}=="16d0", ATTRS{idProduct}=="0e90", TAG+="uaccess"

Would be great to make certtool to use hidraw API on Linux so that hidraw* rule would become sufficient for certtool.