[metadata]: Analyze all metadata of externally orchestrated S3 buckets using REST API

[PravinRanjan10]

** Issue/Feature Description:

1. Analyse metadata of externally orchestrated S3 buckets using REST API:

• The scope of this task is to analyse all metadata of s3 buckets.
• How can we aquire these metadata
• For AWS cloud
• For GCP cloud
  Why this issue to fixed / feature is needed(give scenarios or use cases):

How to reproduce, in case of a bug:

**Other Notes

Please prepare google doc for this task

[PravinRanjan10]

@amitdn2005 Please take a look of this task