Improve class.command.js logging

[mStirner]

Remove every console.log(...); and use build in logger.

backend/components/endpoints/class.command.js

Line 244 in d17066b

console.log("Command timedout! Execution was not successful, worker function:", worker);

There are on the dev system a bug, where device/endpoint handling stops working. "Command timedout" even while the connector successful bridgeds traffic.

But without proper logging, its hard to debug.