[Console Reference Client] Durable Subscription Implementation

[Archie-Miller]

Proposed changes

Implement a helper method in Opc.Ua.Client.Subscription that calls the Server SetSubscriptionDurable method.

In the ConsoleReferenceClient, Implement a sample implementation that shows the functionality of SetSubscriptionDurable from the client's perspective of pausing a subscription, then creating a new session and subscription and after transfer, retrieve all values with loosing any.

Also in ConsoleReferenceClient, allow for the retrieval of event data, with and without Durable Subscriptions.

Related Issues

https://github.com/orgs/OPCFoundation/projects/1/views/18 Task 1 - Addfunctionto client SDK to support SetSubscriptionDurable

Types of changes

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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

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• I ran tests locally with my changes, all passed.
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• I have added tests that prove my fix is effective or that my feature works and increased code coverage.
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Further comments

[codecov]

Codecov Report

Attention: Patch coverage is 70.00000% with 12 lines in your changes missing coverage. Please review.

Project coverage is 54.90%. Comparing base (41363bd) to head (9fedb96).
Report is 24 commits behind head on develop/durable.

Files with missing lines	Patch %	Lines
...braries/Opc.Ua.Client/Subscription/Subscription.cs	70.00%	12 Missing ⚠️

Additional details and impacted files

@@                 Coverage Diff                 @@
##           develop/durable    #2738      +/-   ##
===================================================
- Coverage            55.16%   54.90%   -0.27%     
===================================================
  Files                  349      349              
  Lines                65694    66082     +388     
  Branches             13440    13551     +111     
===================================================
+ Hits                 36239    36280      +41     
- Misses               25618    25865     +247     
- Partials              3837     3937     +100     

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[romanett]

works good in my tests with both server supporting durable & servers that don't