Added COOJA simulation for the simplest 6lbr-demo example, with all default parameters
Added COOJA simulation for the simplest 6lbr-demo example, with all default parameters

bluerover/6lbr,bluerover/6lbr,bluerover/6lbr,bluerover/6lbr,bluerover/6lbr,bluerover/6lbr,bluerover/6lbr