@Override
        public void keyTraversed(TraverseEvent e)
        {
            if (e.detail == SWT.TRAVERSE_TAB_NEXT)
                e.doit = true;
        }
Converts a hex String to byte[]. Will convert full bytes only, odd number of hex characters will
have a leading '0' added. Big endian.

@param hexString an hex string (ie. "0fdA1").
@return the byte[] value of the hex string
plugins/org.jkiss.dbeaver.ui.editors.hex/src/org/jkiss/dbeaver/ui/editors/binary/HexEditControl.java