More colors in Statistics graphs

[DaweP]

When using the Statistics panel for displaying lens usage I often encounter the slight problem that the range of 6-7 colors is not enough to cover all lenses with individual colors - i.e. the colors get repeated and more lenses share the same color. Although I appreciate that the current color schemes are very elegant, I think it would be usefull to add one more option (e.g. "Wide color range") where more colors (albeit not so elegant) are used.