colorSpectrum: Create N Distinct Plot Colors

Creates N distinct three-element RPB vectors for plotting

For a consistent plot lines coloring scheme. Returns a color spectrum from red to green to blue. Avoids colors that are hard to see in matlab plots, such as yellow and cyan.

Three Easy Directions:
Obtain N curves or lines to plot: Data.
Type: C = colorSpectrum(N);
Plot: figure,hold on,for i = 1:N,plot(Data(i,:),'Color',C(i,:)),end,hold off