Use AkubraLowLevel special ID converter for Managed datastreams

[whikloj]

Resolves #6

This needs review and probably some sort of test, but it resolves the issue for me when my DC datastreams are Managed instead of Inline Xml.

[codecov[bot]]

Codecov Report

Merging #7 into master will decrease coverage by 0.05%. The diff coverage is 52.94%.

@@            Coverage Diff             @@
##           master       #7      +/-   ##
==========================================
- Coverage   61.35%   61.29%   -0.06%     
==========================================
  Files          10       10              
  Lines         370      385      +15     
  Branches       40       44       +4     
==========================================
+ Hits          227      236       +9     
- Misses        127      132       +5     
- Partials       16       17       +1

Impacted Files	Coverage Δ
src/main/java/edu/si/fcrepo/ObjectProcessor.java	77.39% <52.94%> (-2.61%)	:arrow_down:

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[whikloj]

I knew Codecov would throw a fit, @ajs6f once you have a chance to look at this and provide some feedback I can add some unit testing for the AkubraIDConverter. Integration tests seem like they would be tougher based on what I can understand of your setup.

[whikloj]

If I move this into the ObjectProcessor it could be private methods, but then I am unsure how to test it?

[ajs6f]

If I move this into the ObjectProcessor it could be private methods, but then I am unsure how to test it?

Oh, didn't see this! Yeah, that's more annoying. Well, at least package-private, okay?

[ajs6f]

Merging this mother...