add original viridis data (of 256), and sample evenly at colormap creation
add original viridis data (of 256), and sample evenly at colormap creation

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