Investigate the dependency onto AtomicFU

[armiol]

At the moment, we have a transitive dependency onto AtomicFU, through Compose.

For some reason, the version referenced is 0.7.13, which is not resolving for me personally, at my local dev env.

At the same time, there is a lot of much newer releases, and it is odd they aren't referenced.

In scope of this issue, we should answer to the following:

1. Whether a newer version of AtomicFU will do?
2. If not, can we use something like version 0.7, which is at least published via Maven Central.

[armiol]

@dpikhulya FYI.