Expand 3D drawing utilities

[tmcgrath325]

closes #88

[codecov-commenter]

Codecov Report

Merging #90 (8b81d11) into master (85da740) will decrease coverage by 0.71%. The diff coverage is 1.38%.

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@@            Coverage Diff             @@
##           master      #90      +/-   ##
==========================================
- Coverage   66.87%   66.17%   -0.71%     
==========================================
  Files          57       57              
  Lines        4864     4917      +53     
==========================================
+ Hits         3253     3254       +1     
- Misses       1611     1663      +52     

Impacted Files	Coverage Δ
src/draw/draw3d.jl	11.36% <1.38%> (-14.36%)	:arrow_down:

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[mojaie]

Thank you very much!