[suggestion] add colorWaitMulti to the lib

after checking yamada's thread I got interested, because getColor is so fast. I know as you said it destroy the easiness. but for advance/expert dev, faster mean better.

so I have this suggestion to add to the commonLib
colorWaitMulti(target, clickLocation, similarity, second, debug)

target = (color1, coordinate1, color2, coordinate2) **could add more color and coordinate for more accurate**

for i t in pair(target) do
if(target match and clickLocation)then click(clickLocation) end
elseif(target match) return i, t.id end end

if timer > second return -1

something like that. and then for the similarity it will be like the code from yamada



r1,g1,b1 = color1
ra1,ga1,ba1 = getColor(coordinate1)
if math.abs(ra1-r1) <= similarity then
if math.abs(ga1-g1) <= similarity then
if math.abs(ba1-b1) <= similarity then
return 1
end
end
end


I'm not really good for optimization code, so I only give the rough explanation. I'm sure you understand more than me.
for checking RGB from image, we can just use simple MsPaint and use the colorpicker and the coordinate also available in MsPaint.