Funcotator: get the NCBI build version from the datasource config file

[droazen]

Store the NCBI build version in the Gencode datasource config files
in order to resolve an issue where this value was not always available
when annotating IGR variants.

Resolves #4404

[droazen]

Note that before this is merged, we'll need to do a datasource release in which the following property is added to the gencode config files:

# Required field for GENCODE files.
# NCBI build version:
ncbi_build_version = X

[codecov-io]

Codecov Report

Merging #5522 into master will increase coverage by 0.002%.
The diff coverage is 100%.

@@              Coverage Diff               @@
##             master     #5522       +/-   ##
==============================================
+ Coverage     87.07%   87.073%   +0.002%     
  Complexity    31318     31318               
==============================================
  Files          1921      1921               
  Lines        144566    144563        -3     
  Branches      15950     15944        -6     
==============================================
+ Hits         125874    125875        +1     
  Misses        12900     12900               
+ Partials       5792      5788        -4

Impacted Files	Coverage Δ	Complexity Δ
...er/tools/funcotator/FuncotatorIntegrationTest.java	84.567% <ø> (+0.266%)	111 <0> (ø)	⬇️
...ools/funcotator/FuncotatorArgumentDefinitions.java	86.667% <100%> (+0.303%)	1 <0> (ø)	⬇️
...dataSources/gencode/GencodeFuncotationFactory.java	86.903% <100%> (+0.302%)	231 <5> (ø)	⬇️
...ender/tools/funcotator/FuncotationMapUnitTest.java	94.678% <100%> (ø)	38 <0> (ø)	⬇️
.../tools/funcotator/dataSources/DataSourceUtils.java	64.483% <100%> (+0.123%)	47 <0> (ø)	⬇️
...ces/gencode/GencodeFuncotationFactoryUnitTest.java	94.038% <100%> (+0.005%)	67 <1> (ø)	⬇️
...oadinstitute/hellbender/utils/gcs/BucketUtils.java	79.878% <0%> (-0.61%)	42% <0%> (ø)

[jonn-smith]

This looks reasonable to me.

I have updated the data sources to include the field name, so it should be all up-to-date and working once merged.