feat(datafusion): add insert_into operation with DataFusion

[fvaleye]

Description

Implement TableProvider::insert_into to support programmatic API calls, and extend DataSink to enable SQL insert operations in DataFusion.

Related Issue(s)

• closes Support DataFusion Insert Into #3084

Documentation

• insert_into from TableProvider
• DataSink

[codecov]

Codecov Report

❌ Patch coverage is 87.39837% with 31 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.71%. Comparing base (19e1eb2) to head (54e45f4).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/core/src/delta_datafusion/table_provider.rs	87.39%	7 Missing and 24 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3762      +/-   ##
==========================================
+ Coverage   75.63%   75.71%   +0.08%     
==========================================
  Files         145      145              
  Lines       44465    44709     +244     
  Branches    44465    44709     +244     
==========================================
+ Hits        33629    33852     +223     
+ Misses       9190     9185       -5     
- Partials     1646     1672      +26     

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[rtyler]

I would like to refactor this code out of the monster table_provider.rs file, but that is an exercise which can be done after merge

[ion-elgreco]

@rtyler @fvaleye I believe this should have been piped through the WriteBuilder because now we have another surface layer where we write differently

[fvaleye]

@rtyler @ion-elgreco here to help with refactoring 👋 .
I have added this feature to understand the integration better, but the DataFusion integration requires further refactoring.