[net][proposal] Rename platform assemblies to Microsoft.*.dll ?

[spouliot]

The breaking changes between legacy and dotnet profiles will lead to confusion about which version/profile is being used when looking at project sources (e.g. on GitHub) or when issues are reported.

The later (issues) are often incomplete and simply seeing Xamarin.iOS.dll will immediately lead to the question of "Is this a legacy or dotnet app ?". Such questions always delay bug resolutions.

Updating the name of the assemblies to something else, like a Microsoft prefix, would automatically answer this question for future issues - even if it makes me sad to see Xamarin disappear even more from the code base :(

This is probably not a trivial change wrt msbuild... but now would be the best time to do it

[rolfbjarne]

@emaf @mauroa would this affect the IDEs in any way?