Extend `clSetDefaultDeviceCommandQueue` test coverage

[jainvikas8]

Fixes #23

Add some positive testing for clSetDefaultDeviceCommandQueue

[jainvikas8]

Not sure, why code format check is failing, as they are none are changes related to this PR

[jainvikas8]

This change is ready for review.

[ahesham-arm]

@kpet Rebased and CI checks are passing.

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