pure kotlin concurrency solution

[nxoim]

As of now java's concurrent hash map is being used, which makes this library unavailable for use under non-android and non-jvm targets. Perhaps concurrency could be handled using a mutex? Or an alternative could be used, like pure kotlin implementations of concurrent collections in the stately library?

[osipxd]

This is a great idea to add support for non-JVM targets! I'll investigate it.