Set all icons on buttons

        :returns: None
        :rtype: None
        :raises: None

def setup_icons(self, ):
        """Set all icons on buttons

        :returns: None
        :rtype: None
        :raises: None
        """
        plus_icon = get_icon('glyphicons_433_plus_bright.png', asicon=True)
        self.addnew_tb.setIcon(plus_icon)