Add benchmark document object test

[parkeunae]

What this PR does / why we need it?

Add benchmark Document/object_test to JS SDK.

Any background context you want to provide?

What are the relevant tickets?

Fixes #

Checklist

• [ ] Added relevant tests or not required
• [ ] Didn't break anything

[codecov[bot]]

Codecov Report

Merging #359 (6b46ae2) into main (8d0eaed) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #359   +/-   ##
=======================================
  Coverage   89.05%   89.05%           
=======================================
  Files          73       73           
  Lines        5489     5489           
  Branches      545      545           
=======================================
  Hits         4888     4888           
  Misses        410      410           
  Partials      191      191           

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[blurfx]

@parkeunae I think you closed this by mistake. should I reopen this?

[hackerwins]

@parkeunae Sorry for the late review. Could you please resolve the conflict?

[hackerwins]

This was merged by #416.