Adding getCrawlYear in ArchiveRecords, resolves #104

[ianmilligan1]

GitHub issue(s):

• GetCrawlYear to accompany GetCrawlMonth #104

What does this Pull Request do?

This pull request:

• Adds getCrawlYear to accompany getCrawlMonth and getCrawlDate
• No features removed
• Has been tested on scripts

How should this be tested?

This is not fixing a bug but adding a new feature. Usage example can be seen in the #104 ticket, and will be added to documentation. I don't think it will have a real effect on code coverage, but we will see (getCrawlMonth is also not part of unit tests right now, I think).

Additional Notes:

• This will require updating of http://docs.archivesunleashed.io/Spark-Analysis-of-Site-Link-Structure/.

[codecov]

Codecov Report

Merging #105 into master will increase coverage by 0.12%.
The diff coverage is 83.33%.

@@            Coverage Diff             @@
##           master     #105      +/-   ##
==========================================
+ Coverage   67.55%   67.67%   +0.12%     
==========================================
  Files          38       38              
  Lines         752      758       +6     
  Branches      141      142       +1     
==========================================
+ Hits          508      513       +5     
  Misses        194      194              
- Partials       50       51       +1

Impacted Files	Coverage Δ
...archivesunleashed/spark/archive/io/ArcRecord.scala	73.33% <100%> (+1.9%)	⬆️
...rchivesunleashed/spark/archive/io/WarcRecord.scala	100% <100%> (ø)	⬆️
...eashed/spark/archive/io/GenericArchiveRecord.scala	80% <75%> (-0.56%)	⬇️

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