adds dotnet tool packaging for kiota

[baywet]

• adds packing information for dotnet tool
• adds workflow to publish the dotnet tool
• adds install instructions for the dotnet tool
• temporary disables branch filters for dotnet tool to try the workflow
• fixes workflow name
• fixes nupkg path for publishing
• adds missing package information for github packages
• Revert "- temporary disables branch filters for dotnet tool to try the workflow"

fixes #123

no generation changes

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

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