X11: use xcb instead of xlib for xinput features

typedef struct xcb_input_device_info_t {
    xcb_atom_t device_type;
    uint8_t    device_id;
    uint8_t    num_class_info;
    uint8_t    device_use;
    uint8_t    pad0;
} xcb_input_device_info_t;

typedef struct xcb_input_device_info_iterator_t {
    xcb_input_device_info_t *data;
    int                      rem;
    int                      index;
} xcb_input_device_info_iterator_t;

 * Get the next element of the iterator
 * @param i Pointer to a xcb_input_device_info_iterator_t
 *
 * Get the next element in the iterator. The member rem is
 * decreased by one. The member data points to the next
 * element. The member index is increased by sizeof(xcb_input_device_info_t)

void
xcb_input_device_info_next (xcb_input_device_info_iterator_t *i );

xcb_generic_iterator_t
xcb_input_device_info_end (xcb_input_device_info_iterator_t i);

xcb_input_device_info_iterator_t
xcb_input_list_input_devices_devices_iterator (const xcb_input_list_input_devices_reply_t *R);