Use DebugAdapterTracker for logging

[karthiknadig]

When we switch to the thew debug adapter we will loose extension side logging for the DAP. Since it currently sits in the type script debug adapter. We should be using DebugAdapterTracker for logging to ensure we can capture logs in all debug sessions attach or launch.

[ericsnowcurrently]

@karthiknadig, how to validate?

[karthiknadig]

Ensure you are in debug adapter descriptor experiment. Ensure ‘logToFile’:true is set in launch json. Then just debug any python script.

[karthiknadig]

Oh and the result would be a .log file in the python extension directory.

[ericsnowcurrently]

I was able to verify that (on master) the log file (2 actually) is created when I put myself in the experiment and add that setting to my launch config. I also verified that logs are no longer created after I remove that setting.