0.18.0 Release

[reinecke]

Summarize your change.

Applies version specification and C++ linting for the 0.18.0 release.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 82.75862% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.13%. Comparing base (4bfa445) to head (a72c66a).

Files with missing lines	Patch %	Lines
src/opentimelineio/color.h	57.14%	3 Missing ⚠️
src/opentimelineio/serialization.cpp	0.00%	3 Missing ⚠️
src/opentimelineio/clip.cpp	0.00%	2 Missing ⚠️
src/opentimelineio/effect.h	0.00%	1 Missing ⚠️
src/opentimelineio/item.h	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1969      +/-   ##
==========================================
+ Coverage   85.11%   85.13%   +0.02%     
==========================================
  Files         181      181              
  Lines       12774    12783       +9     
  Branches     1206     1206              
==========================================
+ Hits        10872    10883      +11     
+ Misses       1719     1717       -2     
  Partials      183      183              

Flag	Coverage Δ
py-unittests	85.13% <82.75%> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/opentime/rationalTime.cpp	84.76% <ø> (ø)
src/opentime/timeRange.h	98.38% <100.00%> (+0.02%)	⬆️
src/opentimelineio/color.cpp	96.73% <100.00%> (+0.48%)	⬆️
src/opentimelineio/composition.cpp	79.27% <100.00%> (ø)
src/opentimelineio/composition.h	82.75% <ø> (ø)
src/opentimelineio/deserialization.cpp	62.88% <100.00%> (-0.29%)	⬇️
src/opentimelineio/effect.cpp	100.00% <100.00%> (ø)
src/opentimelineio/stack.cpp	76.81% <100.00%> (ø)
src/opentimelineio/track.cpp	91.26% <100.00%> (+0.06%)	⬆️
src/opentimelineio/effect.h	80.00% <0.00%> (ø)
... and 4 more

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[apetrynet]

I'm not that familiar with c++ code formatting, so some of these changes don't make that much sense to me.
With exception to that, it looks good to me