refactor(base_bucket_wrapper): selective bucket method override with embedding

[raj-prince]

Description

• Adding base_bucket_wrapper.go with delegation.
• Integrating the base_bucket_wrapper in dummy_io_bucket, with this override for simple delegation is not required, only need to override the required one.

Link to the issue in case of a bug fix.

Testing details

1. Manual - NA
2. Unit tests - NA
3. Integration tests - NA

Any backward incompatible change? If so, please explain.

[codecov]

Codecov Report

❌ Patch coverage is 82.22222% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.16%. Comparing base (01e9163) to head (0d3be95).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
internal/storage/base_bucket_wrapper.go	80.95%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4226      +/-   ##
==========================================
+ Coverage   83.09%   83.16%   +0.07%     
==========================================
  Files         154      155       +1     
  Lines       18910    18912       +2     
==========================================
+ Hits        15714    15729      +15     
+ Misses       2623     2608      -15     
- Partials      573      575       +2     

Flag	Coverage Δ
unittests	83.16% <82.22%> (+0.07%)	⬆️

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