refactor: be simple primitive

[siyul-park]

Changes Made

This pull request includes various improvements and additions to the existing codebase. The major changes made are:

• Refactored the implementation of String, Map, Slice, and more types.
• Added missing test cases for the refactored code.
• Introduced benchmark tests for performance evaluation of key methods.

Additional Information

• The refactored code enhances the readability and maintainability of the types.
• All test cases have been reviewed and updated to ensure comprehensive coverage.
• New benchmark tests provide insights into the performance of key methods.

[codecov]

Codecov Report

Attention: 237 lines in your changes are missing coverage. Please review.

Comparison is base (4f8738a) 63.68% compared to head (ff3b3da) 63.65%.

Files	Patch %	Lines
pkg/primitive/int.go	58.01%	50 Missing and 5 partials ⚠️
pkg/primitive/uint.go	57.69%	50 Missing and 5 partials ⚠️
pkg/primitive/float.go	42.46%	42 Missing ⚠️
pkg/primitive/map.go	66.12%	19 Missing and 2 partials ⚠️
pkg/primitive/slice.go	68.42%	14 Missing and 4 partials ⚠️
pkg/primitive/value.go	18.75%	9 Missing and 4 partials ⚠️
pkg/database/memdb/filter.go	23.07%	0 Missing and 10 partials ⚠️
pkg/primitive/iterator.go	45.45%	4 Missing and 2 partials ⚠️
pkg/database/mongodb/encoding.go	73.33%	4 Missing ⚠️
pkg/primitive/binary.go	80.95%	3 Missing and 1 partial ⚠️
... and 5 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #24      +/-   ##
==========================================
- Coverage   63.68%   63.65%   -0.03%     
==========================================
  Files          75       76       +1     
  Lines        6532     6535       +3     
==========================================
  Hits         4160     4160              
- Misses       1798     1835      +37     
+ Partials      574      540      -34     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.