multitrait changes

[bhaller]

This branch is the long-term branch for changes to implement multiple phenotypic traits in SLiM; it will likely become SLiM 5.1 or SLiM 6.0. It is is active development, and will often not build; it is not recommended for end users until further notice.

[codecov]

Codecov Report

❌ Patch coverage is 77.23343% with 79 lines in your changes missing coverage. Please review.
✅ Project coverage is 76.77%. Comparing base (4e2be2e) to head (4e02d60).

Files with missing lines	Patch %	Lines
core/haplosome.cpp	66.04%	55 Missing ⚠️
core/community_eidos.cpp	79.59%	10 Missing ⚠️
core/community.cpp	93.24%	5 Missing ⚠️
core/genomic_element.cpp	50.00%	3 Missing ⚠️
core/haplosome.h	50.00%	2 Missing ⚠️
core/interaction_type.cpp	90.90%	2 Missing ⚠️
core/chromosome.cpp	92.85%	1 Missing ⚠️
core/genomic_element_type.cpp	92.30%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #531      +/-   ##
==========================================
+ Coverage   75.85%   76.77%   +0.92%     
==========================================
  Files         114      118       +4     
  Lines       72808    78599    +5791     
  Branches    12877    14242    +1365     
==========================================
+ Hits        55230    60348    +5118     
- Misses      17578    18251     +673     

Files with missing lines	Coverage Δ
core/chromosome.h	50.37% <100.00%> (+1.89%)	⬆️
core/community.h	100.00% <ø> (ø)
core/genomic_element.h	100.00% <ø> (ø)
core/genomic_element_type.h	100.00% <ø> (ø)
core/individual.cpp	60.89% <ø> (+5.86%)	⬆️
core/individual.h	32.75% <ø> (ø)
core/interaction_type.h	90.32% <ø> (ø)
core/log_file.cpp	29.52% <100.00%> (ø)
core/log_file.h	100.00% <ø> (ø)
core/main.cpp	10.97% <ø> (ø)
... and 18 more

... and 65 files with indirect coverage changes

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