Expose DateTimeKind value

[malwarefrank]

Expose the DateTimeKind value of a serialized DateTime object in a .NET resource

[malwarefrank]

@nightlark if you want to help out feel free. Otherwise I'll get around to this when I have some time. I started drafting an idea, see the datetime branch I just pushed

I am leaning towards creating a DateTime object with a member named struct, to be consistent with other custom objects and the pefile. The struct members would then be raw numbers while the DateTime object members would be more Pythonic.

I may end up doing this for all the base System.* types, but that will take some time