Move queue-worker from functions/ to openfaas/ ns

[ivanayov]

This moves queue-worker to a better name for images and also gives free image-scanning and gives more confidence to users that components ship regularly and makes any vulnerabilities in components clear

Signed-off-by: Ivana Yovcheva (VMware) iyovcheva@vmware.com

Motivation and Context

• [x] I have raised an issue to propose this change (required)

#741

How Has This Been Tested?

Tested with local build

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I've read the CONTRIBUTION guide
• [x] I have signed-off my commits with git commit -s
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[alexellis]

LGTM