Add WindowEvent::is_same_kind_as

[GuillaumeGomez]

Following #1004.

[GuillaumeGomez]

Do you know when you'll make a new release btw? (You should also maybe "fix" the deprecated items you have, no? If you want I can do it.)

[Cobrand]

You should also maybe "fix" the deprecated items you have, no? If you want I can do it.

What do you mean by that?

I make new releases when I feel like there is a demand for it, or if people ask. I can make one during the week if you'd like.

[GuillaumeGomez]

You have a few functions with a deprecated attribute. I think it's worth fixing them? For example, you have a method that became public whereas it shouldn't have. We can just remove the pub and the attribute and it's done. :)

As for the release, in the week would be great, thanks!

[Cobrand]

Oh for the deprecated attributes, we're just waiting on a few releases to remove them, but I haven't checked most of them in a while, so they're probably all good to remove? Let's say all the deprecated stuff that came in 0.32 or before is fine to remove.

[GuillaumeGomez]

Ok! I'll send a PR shortly then.