Fix unnecessary COM initialization on Windows

[Jinderamarak]

I tracked the issue #2577 back to this commit and the file winit/src/program.rs:L273, where the window is first initialized with default() window options instead of the provided ones.

I am not going to lie, I don't know why we need to create a window with default attributes first and then initialize it again with proper attributes later, but if I change the first initialization to be without drag-and-drop support, then COM is initialized later only when it is really required.

I tested this change with examples/events and the reproduction code from the issue and everything works as I would expect it to on Windows.

Fixes #2577.

[Jinderamarak]

I would also consider using the window options provided when creating the application in this place, because it would be hard to track all of the flags causing similar side effects.

[hecrj]

Thanks!