🔥 remove NamingPolicy

[Odonno]

Thank you for submitting this pull request! We appreciate you spending the time to work on these changes.

What does this change do?

Removes previously supported NamingPolicy property and supports the built-in Column attribute.

• Remove NamingPolicy usage
• Update tests
• Update example projects
• Update benchmark projects
• Handle (de)serialization with Column attribute

What is your testing strategy?

Integration tests

Is this related to any issues?

N/A

Have you read the Contributing Guidelines?

• I have read the Contributing Guidelines

[codecov]

Codecov Report

❌ Patch coverage is 85.18519% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 70.80%. Comparing base (6fd2105) to head (a1d4b2d).
⚠️ Report is 68 commits behind head on main.

Files with missing lines	Patch %	Lines
...rrealDb.Embedded.InMemory/SurrealDbMemoryClient.cs	0.00%	1 Missing ⚠️
...rrealDb.Embedded.RocksDb/SurrealDbRocksDbClient.cs	0.00%	1 Missing ⚠️
SurrealDb.Embedded.SurrealKv/SurrealDbKvClient.cs	0.00%	1 Missing ⚠️
...rrealDb.Net/Internals/Cbor/SurrealDbCborOptions.cs	85.71%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #209      +/-   ##
==========================================
+ Coverage   69.65%   70.80%   +1.15%     
==========================================
  Files         161      188      +27     
  Lines        6702     7593     +891     
  Branches      775      804      +29     
==========================================
+ Hits         4668     5376     +708     
- Misses       1689     1897     +208     
+ Partials      345      320      -25     

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