Closes #703 - Visual editor of the configuration UI shows possible values of Enum properties

[MariusBrill]

This change is 

[codecov]

Codecov Report

Merging #878 (130877d) into master (d37a7dc) will decrease coverage by 0.09%.
The diff coverage is 79.83%.

@@             Coverage Diff              @@
##             master     #878      +/-   ##
============================================
- Coverage     83.00%   82.92%   -0.09%     
- Complexity     1736     1761      +25     
============================================
  Files           174      178       +4     
  Lines          5366     5467     +101     
  Branches        650      656       +6     
============================================
+ Hits           4454     4533      +79     
- Misses          675      690      +15     
- Partials        237      244       +7     

Impacted Files	Coverage Δ	Complexity Δ
...t/ocelot/config/model/tracing/TracingSettings.java	100.00% <ø> (ø)	0.00 <0.00> (ø)
...rocks/inspectit/ocelot/config/utils/CaseUtils.java	90.48% <0.00%> (-4.98%)	8.00 <0.00> (ø)
...lation/log/adapters/JBossLogmanagerMDCAdapter.java	66.67% <66.67%> (ø)	2.00 <2.00> (?)
...nstrumentation/context/ContextPropagationUtil.java	84.73% <70.37%> (-3.00%)	31.00 <3.00> (+5.00)	⬇️
...t/ocelot/config/validation/PropertyPathHelper.java	79.17% <71.43%> (-1.45%)	42.00 <2.00> (-1.00)
...rumentation/context/propagation/DatadogFormat.java	77.14% <77.14%> (ø)	7.00 <7.00> (?)
...trumentation/context/PropagationFormatManager.java	80.00% <80.00%> (ø)	3.00 <3.00> (?)
...ocelot/config/model/tracing/PropagationFormat.java	100.00% <100.00%> (ø)	1.00 <1.00> (?)
...ore/instrumentation/correlation/log/MDCAccess.java	87.80% <100.00%> (+3.93%)	16.00 <3.00> (+3.00)
...ion/correlation/log/adapters/Log4J1MDCAdapter.java	80.00% <100.00%> (+2.22%)	4.00 <1.00> (+1.00)
... and 7 more

[mariusoe]

Reviewed 4 of 4 files at r1, 2 of 2 files at r2.
Reviewable status: complete! all files reviewed, all discussions resolved