closes #78

Note: Integration tests in the CI are failing due to microsoft/linux-package-repositories#130, but they can be run locally with tox -e integration

Summary

Refactors the following dss commands:

• create
• initialize
• logs
• remove
• status
• stop

With the following changes:

1. use logger.debug to store the error with traceback
2. exit with 1 exit code in failure cases
3. raise RuntimeError in failure cases inside the module function
4. handle RuntimeError in main without logging anything else, just by exiting with status code 1 (logging was done in the module function)
5. handle any other Exception in main by providing descriptive error message and use debug to store error and traceback and exit with status code 1.

Notice on dss initialize

This PR refactors initialize command in main to catch RuntimeError even tho it is not currently raised in the initialize.py module. This is because we expect to raise this type of error once we refactor the command, refactoring is being tracked in #68.