Fillable candlestick.

[attila-kun]

This PR allows filling the inside area of candlesticks:

[codecov]

Codecov Report

Merging #226 (d86b26b) into master (96d5184) will decrease coverage by 0.18%.
The diff coverage is 0.00%.

@@ Coverage Diff @@## master #226 +/- ##
==========================================
- Coverage 68.83% 68.65% -0.19% 
==========================================
Files 56 56 Lines 4313 4300 -13 ==========================================
- Hits 2969 2952 -17 - Misses 1344 1348 +4 

Impacted Files	Coverage Δ
src/element/candlestick.rs	0.00% <0.00%> (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/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%)	⬇️
src/drawing/area.rs	93.00% <0.00%> (-0.08%)	⬇️
src/coord/ranged1d/combinators/logarithmic.rs	61.45% <0.00%> (ø)
... and 2 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 96d5184...d86b26b. Read the comment docs.

[inconspicuous99]

what happened to this one?

[facorread]

@inconspicuous99 This PR failed both checks; the project has implemented new checks since.

Would you like to propose an updated PR and some tests? The project would appreciate it.

[38]

Seems we already have merged a PR that fix the bug that candlestick element discard the filled field from the style.

See b41b5a7

Plus this change just make the Candlestick::new doesn't compatible with previous version, thus it's a breaking change. So I am prefer the fix I linked above.

Thanks for your contribution and please don't mind I close the PR.