…ard-Prototypes

- add boiler, data and memory buffer sample node managers to reference server
- exclude Quickstarts.Servers from code coverage

Bumps [Portable.BouncyCastle](https://github.com/novotnyllc/bc-csharp) from 1.8.10 to 1.9.0.
- [Release notes](https://github.com/novotnyllc/bc-csharp/releases)
- [Commits](novotnyllc/bc-csharp@pcl-v1.8.10...pcl-v1.9.0)

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- dependency-name: Portable.BouncyCastle
  dependency-type: direct:production
  update-type: version-update:semver-minor
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Bumps [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 16.11.0 to 17.0.0.
- [Release notes](https://github.com/microsoft/vstest/releases)
- [Commits](microsoft/vstest@v16.11.0...v17.0.0)

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updated-dependencies:
- dependency-name: Microsoft.NET.Test.Sdk
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  update-type: version-update:semver-major
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-fixes for complex types:
  - a structure which contains an enum from namespace 0 can not be created. fixes #1561.
  - a structure with multidimensional array may lead to a endless loop in `ComplexTypeSystem.Load`
  - a malformed namespace Uri which contains a space character prevents creation of type system.
  - select endpoint doesn't pick the right scheme if the default endpoint must be picked
-prep for net472 or greater and net5.0 or greater build, only build #ifdef

Bumps [System.Io.Pipelines](https://github.com/dotnet/runtime) from 4.5.4 to 5.0.1.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](https://github.com/dotnet/runtime/commits/v5.0.1)

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  update-type: version-update:semver-major
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Bumps [System.Text.Encodings.Web](https://github.com/dotnet/runtime) from 4.5.1 to 5.0.1.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](https://github.com/dotnet/runtime/commits/v5.0.1)

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- dependency-name: System.Text.Encodings.Web
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  update-type: version-update:semver-major
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This can cause considerable slowdown when connecting to multiple MQTT
destinations or when waiting for pubsub application to start, and is
unecessary.

Instead, the DisconnectHandler fires on connect fail as well, so this
implementation works.

- add build targets for net6.0
- fix new warnings in VS2022 compiler