Implement DataOneV2 abstraction

[SebastinSanty]

Few points to make:

• It happens that DataDryad is on a older version of DataOne API, hence what was described yesterday didn’t quite turn out as expected. Hence, I made a common base for DataOnev2 which includes KNB which in turn supports ArcticDataCenter. I was not able to find any other API (I was trying to get TERN AU, but didn’t work), hence it would be very helpful if you can point me to a few. Also, Merritt by UC3 which is supposed to be on DataOne API supports a completely different API.

• Though ArcticDataCenter(ADC) mentions that it runs its API through KNB (check here), I was not able to get ADC examples working with its API other than the one example mentioned in that doc.

[oxinabox]

I suggest the capitalization be DataOneV2 not DataOnev2

[codecov-io]

Codecov Report

Merging #21 into master will decrease coverage by 10.62%. The diff coverage is 52%.

@@             Coverage Diff             @@
##           master      #21       +/-   ##
===========================================
- Coverage    96.2%   85.57%   -10.63%     
===========================================
  Files           7       12        +5     
  Lines         158      208       +50     
===========================================
+ Hits          152      178       +26     
- Misses          6       30       +24

Impacted Files	Coverage Δ
src/DataOneV2/KNB.jl	0% <0%> (ø)
src/DataOneV2/ArcticDataCenter.jl	0% <0%> (ø)
src/DataOneV2/KnowledgeNetworkforBiocomplexity.jl	0% <0%> (ø)
src/DataOneV2/TERN.jl	100% <100%> (ø)
src/DataDepsGenerators.jl	90% <33.33%> (-6.3%)	:arrow_down:
src/DataOneV2/DataOneV2.jl	81.25% <81.25%> (ø)
... and 1 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 4261d42...a8fdf11. Read the comment docs.