expansion hunter pre processor

[tedsharpe]

[gatk-bot]

Github actions tests reported job failures from actions build 2359482633 Failures in the following jobs:

Test Type	JDK	Job ID	Logs
unit	11	2359482633.13	logs
unit	8	2359482633.1	logs

[codecov[bot]]

Codecov Report

Merging #7863 (454d393) into master (72684d0) will decrease coverage by 0.011%. The diff coverage is 45.238%.

@@               Coverage Diff               @@
##              master     #7863       +/-   ##
===============================================
- Coverage     86.948%   86.937%   -0.011%     
- Complexity     36927     36934        +7     
===============================================
  Files           2219      2220        +1     
  Lines         173673    173699       +26     
  Branches       18755     18761        +6     
===============================================
+ Hits          151006    151009        +3     
- Misses         16055     16069       +14     
- Partials        6612      6621        +9     

Impacted Files	Coverage Δ
...ellbender/tools/sv/ShardBAMForExpansionHunter.java	0.000% <0.000%> (ø)
...institute/hellbender/tools/walkers/PairWalker.java	77.358% <72.727%> (+2.890%)	:arrow_up:
...e/hellbender/tools/walkers/PairWalkerUnitTest.java	98.718% <100.000%> (+0.051%)	:arrow_up:
.../hellbender/utils/python/PythonUnitTestRunner.java	75.410% <0.000%> (-3.279%)	:arrow_down:
...e/hellbender/tools/sv/cluster/SVClusterEngine.java	93.269% <0.000%> (-1.002%)	:arrow_down:
...stitute/hellbender/tools/walkers/sv/SVCluster.java	89.773% <0.000%> (-0.881%)	:arrow_down:
...tools/walkers/sv/JointGermlineCNVSegmentation.java	86.047% <0.000%> (-0.752%)	:arrow_down:
...der/tools/walkers/sv/SVClusterIntegrationTest.java	99.496% <0.000%> (-0.004%)	:arrow_down:
...itute/hellbender/tools/LocalAssemblerUnitTest.java	92.448% <0.000%> (ø)
...rs/haplotypecaller/graphs/AdaptiveChainPruner.java	97.368% <0.000%> (+0.035%)	:arrow_up:
... and 2 more