Added new Voronoi example.
Added new Voronoi example.

jay3sh/vispy,sh4wn/vispy,sh4wn/vispy,Eric89GXL/vispy,jay3sh/vispy,bollu/vispy,hronoses/vispy,Eric89GXL/vispy,drufat/vispy,bollu/vispy,michaelaye/vispy,RebeccaWPerry/vispy,ghisvail/vispy,QuLogic/vispy,ghisvail/vispy,bollu/vispy,RebeccaWPerry/vispy,ghisvail/vispy,drufat/vispy,jdreaver/vispy,michaelaye/vispy,jay3sh/vispy,inclement/vispy,jdreaver/vispy,sbtlaarzc/vispy,julienr/vispy,kkuunnddaannkk/vispy,dchilds7/Deysha-Star-Formation,michaelaye/vispy,hronoses/vispy,srinathv/vispy,srinathv/vispy,QuLogic/vispy,kkuunnddaannkk/vispy,QuLogic/vispy,julienr/vispy,Eric89GXL/vispy,kkuunnddaannkk/vispy,inclement/vispy,sbtlaarzc/vispy,srinathv/vispy,dchilds7/Deysha-Star-Formation,dchilds7/Deysha-Star-Formation,drufat/vispy,sbtlaarzc/vispy,inclement/vispy,hronoses/vispy,sh4wn/vispy,jdreaver/vispy,julienr/vispy,RebeccaWPerry/vispy