Test dotnet resolution algorithm

[cvpoienaru]

This issue is related to the following change: #4122.

Tests were already written to make sure the new behavior is correctly taken into account, however some essential coverage is missing. We should also test the resolution algorithm when the environment is fully set up to follow the mechanism to the end, but only one resolution strategy at a time is specified, drawn from the following list:

• DotnetMuxerResolutionStrategy.DotnetRootArchitecture
• DotnetMuxerResolutionStrategy.DotnetRootArchitectureLess
• DotnetMuxerResolutionStrategy.GlobalInstallationLocation
• DotnetMuxerResolutionStrategy.DefaultInstallationLocation

Sketch data rows for the test:
[Inline(DotnetMuxerResolutionStrategy...), expected return, expected muxer]
[Inline(DotnetMuxerResolutionStrategy...), expected return, expected muxer]
[Inline(DotnetMuxerResolutionStrategy...), expected return, expected muxer]
[Inline(DotnetMuxerResolutionStrategy...), expected return, expected muxer]

[cvpoienaru]

@MarcoRossignoli, assigning this to you as per our offline discussion.