Support multiplatform libraries

[orangy]

Multiplatform libraries are coming, so it would be nice if https://kotlin.link/ could support an indication for platform(s) the library supports. It could be something simple for a start, like jvm, js, android, ios (for native libraries), etc. Also check https://github.com/bipinvaylu/awesome-kotlin-native for some effort to collect some.

[IRus]

Nice Idea, it described here a lot better than in initial issue #257, so I close #257 and will track progress here.