Introduction of Boxplots with outliers

[tobiasvandriessel]

I added a Boxplot variant with outliers, but I don't know whether it's built the way you'd have liked, as I can imagine you would have liked to have it as a variant of a generic type. However, I decided to build something quick and dirty and figured you might as well think it's okay. I'm open to any suggestions, but I'm still a Rust beginner, so I'm not sure I can do exactly what you'd like.

Cheers.

[codecov]

Codecov Report

Merging #237 (32a577e) into master (96d5184) will increase coverage by 0.27%.
The diff coverage is 85.50%.

@@ Coverage Diff @@ ## master #237 +/- ## ========================================== + Coverage 68.83% 69.11% +0.27%  ========================================== Files 56 57 +1 Lines 4313 4439 +126 ========================================== + Hits 2969 3068 +99  - Misses 1344 1371 +27 

Impacted Files	Coverage Δ
src/element/mod.rs	33.33% <ø> (ø)
src/element/boxplot_outliers.rs	85.50% <85.50%> (ø)
src/chart/axes3d.rs	55.78% <0.00%> (-3.16%)	⬇️
src/coord/ranged3d/projection.rs	73.86% <0.00%> (-1.14%)	⬇️
src/chart/series.rs	61.70% <0.00%> (-1.07%)	⬇️
src/coord/ranged1d/combinators/logarithmic.rs	60.41% <0.00%> (-1.05%)	⬇️
src/chart/mesh.rs	34.78% <0.00%> (-0.97%)	⬇️
src/chart/context.rs	82.83% <0.00%> (-0.47%)	⬇️
src/coord/ranged1d/types/numeric.rs	86.08% <0.00%> (-0.12%)	⬇️
src/data/float.rs	93.75% <0.00%> (-0.10%)	⬇️
... and 4 more

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[wangjiawen2013]

Hi, do you resolve the conflicts ?

[tobiasvandriessel]

@wangjiawen2013 I currently don't have the time to do so; I'll see if I can take a look in a few months.