Feature service configuration rest

[lorthirk]

This PR introduces a new set of REST APIs to manage Service Configurations.

The APIs are:

• GET /{scopeId}/serviceConfigurations: Retrieve all the services configurations for a given account
• PUT /{scopeId}/serviceConfigurations: Update multiple services configurations for a given account
• GET /{scopeId}/serviceConfigurations/{serviceId}: Retrieve the service configuration for a given account and a given service
• PUT /{scopeId}/serviceConfigurations/{serviceId}: Update the service configuration for a given account and a given service

Related Issue
No related issues

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (develop@d826f1c). Click here to learn what that means.
The diff coverage is 2.47%.

@@            Coverage Diff             @@
##             develop    #2732   +/-   ##
==========================================
  Coverage           ?   57.35%           
  Complexity         ?     3158           
==========================================
  Files              ?     1077           
  Lines              ?    30496           
  Branches           ?     2418           
==========================================
  Hits               ?    17492           
  Misses             ?    11846           
  Partials           ?     1158

Impacted Files	Coverage Δ	Complexity Δ
...nfiguration/ServiceComponentConfigurationImpl.java	0% <0%> (ø)	0 <0> (?)
...ommons/configuration/ServiceConfigurationImpl.java	0% <0%> (ø)	0 <0> (?)
...ervice/config/ServiceXmlConfigPropertyAdapted.java	0% <0%> (ø)	0 <0> (?)
...onfiguration/AbstractKapuaConfigurableService.java	80% <0%> (ø)	0 <0> (?)
...vice/config/ServiceXmlConfigPropertiesAdapted.java	0% <0%> (ø)	0 <0> (?)
...vice/config/ServiceXmlConfigPropertiesAdapter.java	0% <0%> (ø)	0 <0> (?)
...ervice/config/ServiceConfigurationXmlRegistry.java	0% <0%> (ø)	0 <0> (?)
...configuration/ServiceConfigurationFactoryImpl.java	0% <0%> (ø)	0 <0> (?)
...astore/internal/MetricInfoRegistryServiceImpl.java	82.55% <100%> (ø)	6 <1> (?)
...astore/internal/ClientInfoRegistryServiceImpl.java	82.14% <100%> (ø)	6 <1> (?)
... and 3 more

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