Tests to validate generated XML against XSDs

[JPercival]

• Ensure serialized XML passes XSD validation for ELM
• Add some round-trips tests to ensure serialized/deserialized ELM is indentical

[github-actions]

Formatting check succeeded!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 64.44%. Comparing base (6a07897) to head (7ced18c).
Report is 1 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1463      +/-   ##
============================================
+ Coverage     64.36%   64.44%   +0.07%     
- Complexity     1928     1937       +9     
============================================
  Files           494      494              
  Lines         28139    28139              
  Branches       5587     5587              
============================================
+ Hits          18111    18133      +22     
+ Misses         7774     7753      -21     
+ Partials       2254     2253       -1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[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