refactor: adapt getSimulators() for OOT platforms

[okwasniewski]

Summary:

This PR removes getSimulators() from createRun and adopts them for createLog. I've also added a handful info message from where we are tailing logs from:

Test Plan:

Check if returned devices are the same.

Checklist

• Documentation is up to date to reflect these changes.
• Follows commit message convention described in CONTRIBUTING.md

[cipolleschi]

I like that the code is much simpler now!

[okwasniewski]

As pointed out by @szymonrybczak (in private message) we can't remove getSimulators() for createLog as it contains the necessary info stated in the comment:

// Here we're using two command because first command xcrun simctl list --json devices outputs state but doesn't return available. But second command xcrun xcdevice list outputs available but doesn't output state. So we need to connect outputs of both commands.