Tidy up examples and reduce amount of printing in tests

[odow]

No description provided.

[codecov]

Codecov Report

Merging #119 into master will increase coverage by 0.04%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #119      +/-   ##
==========================================
+ Coverage   88.98%   89.03%   +0.04%     
==========================================
  Files          29       29              
  Lines        1371     1368       -3     
==========================================
- Hits         1220     1218       -2     
+ Misses        151      150       -1

Impacted Files	Coverage Δ
src/visualizer/publication_plots.jl	0% <ø> (ø)	⬆️
.../price_interpolation/static_price_interpolation.jl	88.57% <0%> (-0.17%)	⬇️
...price_interpolation/dynamic_price_interpolation.jl	90.62% <0%> (-0.15%)	⬇️

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