Fix New-Release cmdlet by also building also for v4 and misc. improvements

[bergmeister]

PR Summary

• Important fix is to also build the release for v4.
• I also reorded it so that it builds v 3,4,5,6 in order to satisfy my inner OCD. ;)
• Minor improvement of error message for platyPS requirement check

PR Checklist

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• NA Make sure you've added a new test if existing tests do not effectively test the code changed
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[bergmeister]

The essential bug was that it was not being built for version 4, the rest is just re-ordering that it builds v 3,4,5,6 in order for better readability

[JamesWTruher]

the 1.16.1 version of Script Analyzer did not include a PSv4 directory. So we haven't shipped it for a long while. Has there been an issue with this? Is there any strong reason why we should start shipping a v4 version when we haven't previously?

[JamesWTruher]

I'm not sure we should release a v4 version

[JamesWTruher]

the 1.16.1 version of Script Analyzer did not include a PSv4 directory. So we haven't shipped it for a long while. Has there been an issue with this? Is there any strong reason why we should start shipping a v4 version when we haven't previously?

[bergmeister]

@JamesWTruher we already used to ship a folder for psv34 (and fullclr and coreclr) but PR #919 that fixed the references to SMA to be correct, split v3 and v4 (leading to much better behaviour for v3). The psm1 file has custom code here to pick the right binaries for the right version. PSSA will not work on v4 without this PR