40419
14637 Deprecate some NBWin32xxxx classes in favour of external OS-Windows package	https://pharo.fogbugz.com/f/cases/1463713269 MenuMorph invokeModal restores focus	https://pharo.fogbugz.com/f/cases/132695809 Overlapping sub-MenuMorphs do not hold focus	https://pharo.fogbugz.com/f/cases/5809

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