Check that we handle correctly the Windows PE versions

[pombredanne]

We collect binary metadata in DLLs.

See https://github.com/nexB/scancode-toolkit/blob/4f49985c26b6b8f951f116dfa3fe39ce27bd4ce8/src/packagedcode/win_pe.py#L110

But see this publication:
https://learn.microsoft.com/en-us/troubleshoot/developer/dotnet/framework/general/assembly-version-assembly-file-version

We may also wrongly use "Assembly Version" instead of "AssemblyVersion"

[alok1304]

@pombredanne I checked it, basically, what i do, is I use AssemblyVersion instead of Assembly Version.
I got AssemblyVersion is null for tests\packagedcode\data\win_pe\Microsoft.Practices.EnterpriseLibrary.Caching.dll and
tests\packagedcode\data\win_pe\Moq.Silverlight.dll

But in previous it is pointing to
"Assembly Version": "2.0.0.0", for tests\packagedcode\data\win_pe\Microsoft.Practices.EnterpriseLibrary.Caching.dll
and
"Assembly Version": "4.2.1507.118", for tests\packagedcode\data\win_pe\Moq.Silverlight.dll.

I think there might be some issue I raise a PR soon regarding this.