Issuefix for empty buckets missing without any filter & buckets with no objects showing with object level filter

[josephjacobmorris]

What type of PR is this?

/kind bug fix /kind enhancements

What this PR does / why we need it:

Which issue(s) this PR fixes:

• fixing expires date coming as zero value if no value is provided
• empty buckets are missing in o/p for without any filter case fix
• adding document Id to o/p
• adding filtered aggregation fields
• fixing buckets with no objects after filtering also getting displayed when querying object level
• renaming fields as objectSizeInBytes,bucketSizeInBytes

Fixes #

1392

Test Report Added?:

/kind TESTED

Test Report:

• empty buckets are missing in o/p for without any filter case fix

• adding document id to o/p

• adding filtered aggregation fields

• fixing buckets with no objects after filtering also getting displayed when querying object level

• renaming fields as objectSizeInBytes,bucketSizeInBytes

Special notes for your reviewer:

[codecov[bot]]

Codecov Report

Merging #1396 (3062fb8) into metadata-management (15dad6f) will not change coverage. The diff coverage is n/a.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## metadata-management #1396 +/- ## ==================================================== Coverage 48.12% 48.12% ==================================================== Files 10 10 Lines 1571 1571 ==================================================== Hits 756 756 Misses 756 756 Partials 59 59 ```

[josephjacobmorris]

@devanshjain7 is also testing