Fixed NPE when packaging a measure with an unresolvable primary library reference

[brynrhodes]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 57.14286% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 20.02%. Comparing base (6d6da43) to head (5513bf5).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...ava/org/opencds/cqf/tooling/packaging/Package.java	50.00%	1 Missing and 3 partials ⚠️
...encds/cqf/tooling/packaging/r4/PackageMeasure.java	66.66%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #588      +/-   ##
============================================
+ Coverage     20.01%   20.02%   +0.01%     
  Complexity     1672     1672              
============================================
  Files           311      311              
  Lines         27390    27395       +5     
  Branches       4340     4344       +4     
============================================
+ Hits           5482     5486       +4     
+ Misses        20989    20986       -3     
- Partials        919      923       +4     

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[raleigh-g-thompson]

Maybe the code in the resolvePrimaryLibraryDependencies function works as expected, but not clear from the code the exact intent of this logic with regards to the local primaryLibrary and the instance's primaryLibrary value.

[raleigh-g-thompson]

Discussed implementation with Bryn and will accept current changes.