add blob prefix support

[aksakalmustafa]

Release notes

What does this PR do?

Adds blob prefix support to listing storage objects with blob_prefix config

Why is it important/What is the impact to the user?

Checklist

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have made corresponding change to the default configuration files (and/or docker env variables)
• I have added tests that prove my fix is effective or that my feature works

Author's Checklist

• My code doesn't break existing features
• When blob_prefix config is specified, only prefixed blobs are listed

How to test this PR locally

Related issues

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[cla-checker-service]

💚 CLA has been signed

[aksakalmustafa]

@jsvd CI is failing due to change 46ff388 commit. Looks like the main branch is also failing. it is most probably related to the conflict between jruby & jar-dependencies dependency. ES 6.x is passing when jar-dependencies is 0.4.1. Who needs to address the CI issue? Thanks!