Add IJsonEncoder/IJsonDecoder interfaces

[mregen]

Proposed changes

• in order to abstract the implementation of a IEncoder/IDecoder for Json with some extra methods and properties, derive JsonEncoder/Jsondecoder from a IJsonDecoder/IJsonEncoder interface
• breaking change: the use of reversible/non-reversible subencoding is handled by a new method:
  void UsingReversibleEncoding<T>(Action<string, T> action, string fieldName, T value, bool useReversibleEncoding)

Types of changes

What types of changes does your code introduce?
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• Bugfix (non-breaking change which fixes an issue)
• Enhancement (non-breaking change which adds functionality)
• Test enhancement (non-breaking change to increase test coverage)
• Breaking change (fix or feature that would cause existing functionality to not work as expected, requires version increase of Nuget packages)
• Documentation Update (if none of the other choices apply)

Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your code.

• I have read the CONTRIBUTING doc.
• I have signed the CLA.
• I ran tests locally with my changes, all passed.
• I fixed all failing tests in the CI pipelines.
• I fixed all introduced issues with CodeQL and LGTM.
• I have added tests that prove my fix is effective or that my feature works and increased code coverage.
• I have added necessary documentation (if appropriate).
• Any dependent changes have been merged and published in downstream modules.

[codecov]

Codecov Report

Merging #2042 (d21458a) into master (c7bd19d) will increase coverage by 13.52%.
The diff coverage is 95.00%.

❗ Current head d21458a differs from pull request most recent head 3bb97ff. Consider uploading reports for the commit 3bb97ff to get more accurate results

@@             Coverage Diff             @@
##           master    #2042       +/-   ##
===========================================
+ Coverage   44.34%   57.86%   +13.52%     
===========================================
  Files         276      324       +48     
  Lines       51605    61498     +9893     
===========================================
+ Hits        22884    35587    +12703     
+ Misses      28721    25911     -2810     

Impacted Files	Coverage Δ
Stack/Opc.Ua.Core/Types/Encoders/JsonDecoder.cs	82.61% <ø> (+4.22%)	⬆️
Stack/Opc.Ua.Core/Types/Encoders/JsonEncoder.cs	82.09% <92.85%> (+0.87%)	⬆️
...aries/Opc.Ua.PubSub/Encoding/JsonDataSetMessage.cs	86.86% <100.00%> (ø)
...aries/Opc.Ua.PubSub/Encoding/JsonNetworkMessage.cs	90.34% <100.00%> (ø)

... and 187 files with indirect coverage changes

[mregen]

First feedback in the dev meeting is why not extending the base IEncoder/IDecoder interface?

[mregen]

we need to wait until the REST WG has some idea how the ABNF notation can be integrated.

[mrsuciu]

Code looks good, but shouldn't the year in the Copyright be updated ?

[mregen]

Code looks good, but shouldn't the year in the Copyright be updated ?

good point, I need to check what the policy is. Effectively the PR was done in 2022, just sitting very long. in the past we did bulk updates from time to time...