Fix reflection and modularity errors wrt. jakarta and gson.

[mfl28]

• Explicitly add missing "uses" directives (that cannot be determined automatically) to jlink mergeModule section to fix modularity errors in the runtime images (-> jakarta).
• Transform ModelEntry and BoundingBoxPredictionEntry records back to data classes as Gson does not seem to have reflective access to set the fields of records.
• Verify the equality contract of the data classes in unit tests.

Fixes #30 .

[codecov]

Codecov Report

Base: 85.55% // Head: 85.60% // Increases project coverage by +0.04% 🎉

Coverage data is based on head (ca99fa8) compared to base (1dcaa0b).
Patch coverage: 96.42% of modified lines in pull request are covered.

Additional details and impacted files

@@             Coverage Diff              @@
##             master      #31      +/-   ##
============================================
+ Coverage     85.55%   85.60%   +0.04%     
- Complexity     1345     1363      +18     
============================================
  Files            91       91              
  Lines          5600     5626      +26     
  Branches        503      509       +6     
============================================
+ Hits           4791     4816      +25     
- Misses          547      548       +1     
  Partials        262      262              

Impacted Files	Coverage Δ
...dingboxeditor/model/io/restclients/ModelEntry.java	92.85% <92.85%> (-7.15%)	⬇️
...del/io/restclients/BoundingBoxPredictionEntry.java	100.00% <100.00%> (ø)

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

97.9% Coverage
0.0% Duplication