chore: Add testrunner wrapper

[richardwerkman]

To prepare for adding the new MsTestRunner we need to add a wrapper for the current testrunner. That makes it possible to add a second one and support switching between the runners.

[sonarqubecloud]

Quality Gate failed

Failed conditions
23.3% Coverage on New Code (required ≥ 80%)
6 New Major Issues (required ≤ 0)
1 New Critical Issues (required ≤ 0)
6 New Minor Issues (required ≤ 0)
3 New Security Hotspots (required ≤ 0)
13 New Code Smells (required ≤ 2)

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