Add OBJ_Mesh example and example obj files.
Add OBJ_Mesh example and example obj files.

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