Opsworks-cli

- bug fixes with the load-balanced servers
- other minor bug fixes

Following bugs are fixed with this release
- Loop issue with the success + failed instances.
- LogUrl not printing to the output correctly

* refactor code to resolved major issues reported by sonar.
* changed the way accepting user input internally.
* python3 support added

- App Deploy new feature through the cli
- Bug fixes.

bug fix in the loop where we have some issue with the status loop

Fixed the Issue03.

running with both layerid and custom json throwing error.

This is a minor bug fix.