Adding StyleClasses patch to [nanosvg]

[FitzerIRL]

Adding ... https://github.com/memononen/nanosvg/pull/175/files

[codecov]

Codecov Report

Merging #2269 into master will decrease coverage by 0.02%.
The diff coverage is 75.00%.

@@            Coverage Diff             @@
##           master    #2269      +/-   ##
==========================================
- Coverage   74.31%   74.28%   -0.03%     
==========================================
  Files         148      148              
  Lines       24069    24083      +14     
==========================================
+ Hits        17887    17891       +4     
- Misses       6182     6192      +10     

Impacted Files	Coverage Δ
examples/pxScene2d/src/pxScene2d.cpp	74.31% <71.42%> (ø)
examples/pxScene2d/src/pxContextGL.cpp	77.77% <100.00%> (+0.01%)	⬆️
src/rtScriptV8/rtScriptNode.cpp	85.40% <0.00%> (ø)
examples/pxScene2d/src/pxVideo.h	100.00% <0.00%> (ø)
examples/pxScene2d/src/pxVideo.cpp	6.06% <0.00%> (+0.06%)	⬆️
src/rtFileDownloader.cpp	70.24% <0.00%> (+0.08%)	⬆️

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[FitzerIRL]

Replace by pxscene/Spark-Externals#44