Bugfixes for the logger subsystem

1. hotfix: redundant logs in the folder (#1268) - 2dabadd

   Prevents uncontrolled creation of detox_<pid>.log files in the current working directory, when using --record-logs and not specifying the location of the artifacts (which is an autogenerated artifacts/<configuration>_<timestamp> folder).

2. fix: stabilize simulator log recording (#1273) - 65e1975

   Addresses sporadic hanging of a test runner due to a race condition caused by 3rd-party tail npm package: setTimeout (=> @watch()), 1000 . The tail object is apt to subscribe itself to FS events on the sly via creating a watcher (fs.watch()) even after fs.unwatch() has been called.