Remove Kennisnet verification

[ATimmeh33]

No description provided.

[Copilot]

Pull Request Overview

This PR removes Kennisnet verification functionality from the SignhostAPIClient, following the deprecation notice that indicated it would be removed in SemVer 4.

• Removes the obsolete KennisnetVerification class
• Removes RequireKennisnetVerification property from test request bodies and API responses
• Cleans up test data to match the updated API structure

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
KennisnetVerification.cs	Completely removes the obsolete KennisnetVerification class
RequestBodies.resx	Removes RequireKennisnetVerification from test request JSON data
APIResponses.resx	Removes RequireKennisnetVerification from test response JSON data

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[ATimmeh33]

Now part of #153