Fixed the following issues:
* Checking that every command finishes successfully (non-zero return code)
* Fixed the path for the secret_name output (the program was producing variable paths different from the path in component.yaml)
* initial watson pipeline
* updates
* updates
* Update creds
* updated dockerhub base files
* update watson pipeline (#2)
Removing references to wml-base image, and recreating it with python-slim as base image
* address review comment (#3)
* change s3 to cos (#4)
Tommy Li
Animesh Singh
Alexey Volkov