FHIR Gateway Extensions enhancements

[ndegwamartin]

IMPORTANT: Where possible all PRs must be linked to a Github issue

• Fix REL cache by sync strategy bug
• Refactor LocationHierarchyHelper pagination
• Unit testing
• Release 2.2.4

Engineer Checklist

• I have written Unit tests for any new feature(s) and edge cases for
  bug fixes
• I have added documentation for any new feature(s) and configuration
  option(s) on the README.md
• I have run mvn spotless:check to check my code follows the project's
  style guide
• I have run mvn clean test jacoco:report to confirm the coverage report
  was generated at plugins/target/site/jacoco/index.html
• I ran mvn clean package right before creating this pull request.

[codecov]

Codecov Report

Attention: Patch coverage is 55.07246% with 31 lines in your changes missing coverage. Please review.

Project coverage is 62.92%. Comparing base (3471eb3) to head (bd0022a).

Files with missing lines	Patch %	Lines
.../fhir/gateway/plugins/PermissionAccessChecker.java	25.00%	23 Missing and 1 partial ⚠️
.../org/smartregister/fhir/gateway/plugins/Utils.java	80.55%	5 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #108      +/-   ##
============================================
+ Coverage     61.34%   62.92%   +1.58%     
- Complexity      208      219      +11     
============================================
  Files            16       16              
  Lines          1428     1454      +26     
  Branches        165      166       +1     
============================================
+ Hits            876      915      +39     
+ Misses          467      452      -15     
- Partials         85       87       +2     

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