Properties as attributes on Project element

Hey friends,
With all the great strides that are happening with the *proj format, wouldn't it be neat if you could set property values as attributes on the root project element?

f.e, before:

```

Exe
netcoreapp1.0

```

after

``

This would only be a short hand and most people would set most of their properties the old way, but it would get some of those properties you always set out of the way.

In my mind this would be for properties only, not Items, so the names would not be ambiguous in that sense. They'd then be pre processed into regular property groups (if I remember correctly there is a preprosessor step that transforms the sdk property already correct?)

What do you think?