* Remove Subsystems map and replace with RegisterSubSystem
* Clean up the logger
* Fix LOGFLAGS and make LongFile work correctly
* Parallelize the logger backend
* More logger cleanup
* Initialize and close the logger backend wherever it's needed
* Move the location where the backend is closed, also print the log if it panics while writing
* Add TestMain to reachability manager tests to preserve the same log level
* Fix review comments
Co-authored-by: Svarog <feanorr@gmail.com>
* [NOD-1223] Delete unused files/packages.
* [NOD-1223] Move signal and limits to the os package.
* [NOD-1223] Put database and dbaccess into the db package.
* [NOD-1223] Fold the logs package into the logger package.
* [NOD-1223] Rename domainmessage to appmessage.
* [NOD-1223] Rename to/from DomainMessage to AppMessage.
* [NOD-1223] Move appmessage to the app packge.
* [NOD-1223] Move protocol to the app packge.
* [NOD-1223] Move the network package to the infrastructure packge.
* [NOD-1223] Rename cmd to executables.
* [NOD-1223] Fix go.doc in the logger package.
