Add a getIDs method to VariantContext

[lbergelson]

• This returns a List of IDs instead of a single String.
• Fixes https://github.com/samtools/htsjdk/issues/1506

@BoscoSuent this was quick so I added it, it should fix your issue.

[lbergelson]

@yfarjoun Do you know what the deal with the tests is? Didn't you have a minor fix for some self-recursive call?

[lbergelson]

@yfarjoun Oh man, this is MY PR... not yours. I was thinking this was the one that added new getters for attributes. Woops!

[yfarjoun]

hehe. that vacation left you real fresh!

[codecov-commenter]

Codecov Report

Merging #1508 into master will increase coverage by 0.007%. The diff coverage is 100.000%.

@@               Coverage Diff               @@
##              master     #1508       +/-   ##
===============================================
+ Coverage     69.343%   69.350%   +0.007%     
- Complexity      8900      8902        +2     
===============================================
  Files            601       601               
  Lines          35503     35511        +8     
  Branches        5901      5901               
===============================================
+ Hits           24619     24627        +8     
  Misses          8548      8548               
  Partials        2336      2336               

Impacted Files	Coverage Δ	Complexity Δ
.../htsjdk/variant/variantcontext/VariantContext.java	78.125% <100.000%> (+0.121%)	239.000 <2.000> (+2.000)
src/main/java/htsjdk/variant/vcf/VCFConstants.java	92.308% <100.000%> (+4.808%)	1.000 <0.000> (ø)