IG convention auto-detection bug fixes

[JPercival]

• Moved all internal tests to use the auto-detection
• Fixed all bugs that surfaced because of non-standard layouts
• Refactored some utility Resource utility classes to make it easier to write tests
• Fixed spelling errors, format errors, and places where naming conventions didn't match
• Tests for the utility classes

[github-actions[bot]]

Formatting check succeeded!

[codecov[bot]]

Codecov Report

Attention: 16 lines in your changes are missing coverage. Please review.

Comparison is base (99c3fdd) 52.86% compared to head (0308be0) 52.74%.

Files	Patch %	Lines
.../cqf/fhir/utility/repository/ig/IgConventions.java	89.70%	4 Missing and 3 partials :warning:
...main/java/org/opencds/cqf/fhir/test/Resources.java	80.00%	5 Missing and 1 partial :warning:
...rg/opencds/cqf/fhir/cr/cli/command/CqlCommand.java	0.00%	1 Missing :warning:
.../org/opencds/cqf/fhir/test/FhirResourceLoader.java	0.00%	1 Missing :warning:
...s/cqf/fhir/utility/repository/ig/IgRepository.java	92.85%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #424 +/- ## ============================================ - Coverage 52.86% 52.74% -0.13% - Complexity 2092 2113 +21 ============================================ Files 278 281 +3 Lines 11702 11799 +97 Branches 1592 1609 +17 ============================================ + Hits 6186 6223 +37 - Misses 4907 4971 +64 + Partials 609 605 -4 ```

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