[WIP] Add warning message about the used MSBuild version

[Copilot]

Thanks for assigning this issue to me. I'm starting to work on it and will keep this PR's description up to date as I form a plan and make progress.

Original issue description:

There is a request to add a warning message about the possible compatibility issues - sometimes MSBuild that is being loaded is just too old to have modern things.

Fixes #272.

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