add bounds() to markers
add bounds() to markers

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