IgRepository Documentation

[jreyno77]

Added further documentation to IgRepository. Apply some RedHat formatting and fix a couple of spelling mistakes.

[github-actions]

Formatting check succeeded!

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

Attention: Patch coverage is 97.22222% with 1 line in your changes missing coverage. Please review.

Project coverage is 73.45%. Comparing base (4ca56c7) to head (11b5095).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...s/cqf/fhir/utility/repository/ig/IgRepository.java	97.22%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #585   +/-   ##
=========================================
  Coverage     73.45%   73.45%           
  Complexity       19       19           
=========================================
  Files           365      365           
  Lines         19590    19591    +1     
  Branches       2985     2985           
=========================================
+ Hits          14389    14390    +1     
  Misses         3763     3763           
  Partials       1438     1438           

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