Implement SVConcordance tool

[mwalker174]

Analogous to GenotypeConcordance, but for SVs.

[codecov[bot]]

Codecov Report

Merging #7977 (27cf6ef) into master (d1a4f94) will decrease coverage by 0.006%. The diff coverage is 92.234%.

Additional details and impacted files

@@               Coverage Diff               @@
##              master     #7977       +/-   ##
===============================================
- Coverage     86.658%   86.652%   -0.006%     
- Complexity     39024     39154      +130     
===============================================
  Files           2337      2346        +9     
  Lines         182961    183608      +647     
  Branches       20079     20147       +68     
===============================================
+ Hits          158550    159100      +550     
- Misses         17365     17447       +82     
- Partials        7046      7061       +15     

Impacted Files	Coverage Δ
...roadinstitute/hellbender/tools/sv/SVLocatable.java	25.000% <ø> (ø)
...titute/hellbender/utils/GenotypeUtilsUnitTest.java	94.624% <ø> (ø)
...ellbender/tools/sv/cluster/CanonicalSVLinkage.java	83.146% <62.963%> (-6.043%)	:arrow_down:
...ender/utils/variant/GATKSVVariantContextUtils.java	93.939% <66.667%> (-2.835%)	:arrow_down:
...stitute/hellbender/tools/sv/SVCallRecordUtils.java	79.167% <73.810%> (-4.518%)	:arrow_down:
...der/tools/walkers/sv/SVClusterIntegrationTest.java	98.974% <77.778%> (-0.522%)	:arrow_down:
...oadinstitute/hellbender/tools/sv/SVCallRecord.java	84.348% <79.167%> (+2.144%)	:arrow_up:
...r/tools/sv/concordance/SVConcordanceAnnotator.java	83.465% <83.465%> (ø)
...roadinstitute/hellbender/tools/sv/SVTestUtils.java	90.274% <84.286%> (-6.426%)	:arrow_down:
...lbender/tools/sv/cluster/CanonicalSVCollapser.java	80.635% <86.508%> (-6.836%)	:arrow_down:
... and 30 more