JaxbContext refactoring and improvement

[Coduz]

This PR refactors the JaxbContext model and usage.

Related Issue None

Description of the solution adopted Improved usage by simplifying the creation and setting of the properties by creation of common utility classes for JaxbContextProvider and JaxbContestResolver.

It adds a new logic which is meant to mitigate the problem of missing mapped classes in the JaxbContext by dinamically adding them and printing a warn message so developer can add the missing classes.

Screenshots None

Any side note on the changes made None

[codecov[bot]]

Codecov Report

Merging #3499 (fdbe7a4) into develop (8e01b9d) will decrease coverage by 14.25%. The diff coverage is 67.90%.

:exclamation: Current head fdbe7a4 differs from pull request most recent head d5f7755. Consider uploading reports for the commit d5f7755 to get more accurate results

@@              Coverage Diff               @@
##             develop    #3499       +/-   ##
==============================================
- Coverage      50.13%   35.87%   -14.26%     
+ Complexity       259      179       -80     
==============================================
  Files           1669     1670        +1     
  Lines          32011    32000       -11     
  Branches        2634     2635        +1     
==============================================
- Hits           16048    11480     -4568     
- Misses         15028    19899     +4871     
+ Partials         935      621      -314     

Impacted Files	Coverage Δ
.../app/web/commons/xml/JaxRSJAXBContextProvider.java	0.00% <0.00%> (ø)
...e/kapua/broker/core/BrokerJAXBContextProvider.java	0.00% <0.00%> (ø)
...apua/commons/jpa/AbstractEntityManagerFactory.java	78.12% <ø> (ø)
...ob/engine/commons/wrappers/StepContextWrapper.java	0.00% <0.00%> (ø)
...ua/app/api/core/MoxyJsonConfigContextResolver.java	100.00% <ø> (ø)
...ua/app/api/core/exception/model/ExceptionInfo.java	72.72% <ø> (ø)
.../kapua/app/api/web/RestApiJAXBContextProvider.java	0.00% <0.00%> (-100.00%)	:arrow_down:
...s/util/xml/FallbackMappingJAXBContextProvider.java	78.57% <78.57%> (ø)
...a/commons/util/xml/DefaultJAXBContextProvider.java	85.71% <85.71%> (ø)
.../app/web/commons/xml/JaxRSJAXBContextResolver.java	100.00% <100.00%> (ø)
... and 262 more