sls offline cleanup fails if folder does not exist

[wbreza]

sls offline cleanup fails if folder does not exist

Description

• What went wrong?

When running sls offline cleanup the command throw an exception if any function folder does not exist within the filesystem.

• What did you expect should have happened?

If any folder doesn't exist it should be skipped and continue onto the next folder

• What was the config you used? N/A
• What stacktrace or error message from your provider did you see? N/A

Similar or dependent issues:

• N/A

Additional Data

• Serverless Framework Version you're using: 1.5.2
• Serverless CLI Version you're using: 1.5.2
• Serverless Azure Plugin Version you're using: 1.0.0
• Operating System:
• Stack Trace:
• Provider Error messages: