Expanded metrics v3

[jshermeyer]

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Description

Bug fix for when a proposal class doesn't overlap with the ground truth and speed improvements

Type of change

Please delete options that are not relevant.

• [X] Bug fix (non-breaking change which fixes an issue)
• [X] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected - these changes will not be merged until major releases!)

How Has This Been Tested?

Please describe tests that you added to the pytest codebase (if applicable).

Checklist:

• [x] My PR has a descriptive title
• [x] My code follows PEP8
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [x] My changes generate no new errors
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] My PR passes Travis CI tests
• [x] My PR does not reduce coverage in Codecov

If your PR does not fulfill all of the requirements in the checklist above, that's OK! Just prepend [WIP] to the PR title until they are all satisfied. If you need help, @-mention a maintainer and/or add the Status: Help Needed label.

[codecov[bot]]

Codecov Report

Merging #381 into dev will decrease coverage by 0.03%. The diff coverage is 62.90%.

@@            Coverage Diff             @@
##              dev     #381      +/-   ##
==========================================
- Coverage   56.75%   56.72%   -0.04%     
==========================================
  Files          80       80              
  Lines        6806     6835      +29     
==========================================
+ Hits         3863     3877      +14     
- Misses       2943     2958      +15     

Impacted Files	Coverage Δ
solaris/eval/vector.py	85.88% <61.66%> (-7.74%)	:arrow_down:
tests/test_eval/vector_test.py	100.00% <100.00%> (ø)

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