Added resource usage section to the GermlineCNVCaller java doc.

[asmirnov239]

Added guidelines for resource usage that we use for running gCNV to GermlineCNVCaller doc. This addressed #6166.

[gatk-bot]

Github actions tests reported job failures from actions build 3284842037
Failures in the following jobs:

Test Type	JDK	Job ID	Logs
integration	8	3284842037.0	logs
integration	8	3284842037.0	logs
integration	8	3284842037.0	logs

[codecov]

Codecov Report

Merging #8064 (cc9f50a) into master (a3c1d2c) will decrease coverage by 7.452%.
The diff coverage is n/a.

❗ Current head cc9f50a differs from pull request most recent head b92dd7e. Consider uploading reports for the commit b92dd7e to get more accurate results

Additional details and impacted files

@@               Coverage Diff               @@
##              master     #8064       +/-   ##
===============================================
- Coverage     86.658%   79.205%   -7.452%     
+ Complexity     39020     36810     -2210     
===============================================
  Files           2337      2337               
  Lines         182961    182961               
  Branches       20080     20079        -1     
===============================================
- Hits          158550    144915    -13635     
- Misses         17363     31204    +13841     
+ Partials        7048      6842      -206     

Impacted Files	Coverage Δ
...hellbender/tools/copynumber/GermlineCNVCaller.java	81.000% <ø> (ø)
...adinstitute/hellbender/utils/help/TestWDLTool.java	0.000% <0.000%> (-100.000%)	⬇️
...kers/filters/VariantFiltrationIntegrationTest.java	0.658% <0.000%> (-99.342%)	⬇️
...s/variantutils/VariantsToTableIntegrationTest.java	0.714% <0.000%> (-99.286%)	⬇️
...dorientation/CollectF1R2CountsIntegrationTest.java	0.714% <0.000%> (-99.286%)	⬇️
...der/tools/walkers/sv/SVClusterIntegrationTest.java	0.504% <0.000%> (-98.992%)	⬇️
.../walkers/bqsr/BaseRecalibratorIntegrationTest.java	1.031% <0.000%> (-98.969%)	⬇️
...tion/ReferenceBlockConcordanceIntegrationTest.java	0.840% <0.000%> (-98.599%)	⬇️
...tute/hellbender/tools/FlagStatIntegrationTest.java	1.724% <0.000%> (-98.276%)	⬇️
...park/pipelines/CountReadsSparkIntegrationTest.java	1.786% <0.000%> (-98.214%)	⬇️
... and 213 more

[gatk-bot]

Github actions tests reported job failures from actions build 3441109117
Failures in the following jobs:

Test Type	JDK	Job ID	Logs
integration	8	3441109117.0	logs

[gatk-bot]

Github actions tests reported job failures from actions build 4079416605
Failures in the following jobs:

Test Type	JDK	Job ID	Logs
integration	8	4079416605.0	logs