SqlBatchCommand support CommandBehavior

[campersau]

Description

#1825 added the Batch APIs and also added a CommandBehavior property to SqlBatchCommand which was completly unused.
Note: SqlBatchCommand.CommandBehavior is a custom property in SqlClient which isn't in the DbBatchCommand

Also the CommandBehavior for ExecuteReader was ignored.

This PR enables the use of the SqlBatchCommand.CommandBehavior and also supports passing CommandBehavior to ExecuteReader.

Issues

Fixes #4083

Testing

Added tests for passing CommandBehavior.SchemaOnly | CommandBehavior.KeyInfo to SqlBatchCommand.CommandBehavior.
Added tests for passing CommandBehavior.CloseConnection to ExecuteReader.

[cheenamalhotra]

LGTM

[cheenamalhotra]

/azp run

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[codecov]

Codecov Report

❌ Patch coverage is 90.62500% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 64.74%. Comparing base (c724554) to head (2ff5fe5).
⚠️ Report is 9 commits behind head on main.

Files with missing lines	Patch %	Lines
...SqlClient/src/Microsoft/Data/SqlClient/SqlBatch.cs	88.46%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4125      +/-   ##
==========================================
- Coverage   66.57%   64.74%   -1.83%     
==========================================
  Files         284      279       -5     
  Lines       43301    66225   +22924     
==========================================
+ Hits        28827    42879   +14052     
- Misses      14474    23346    +8872     

Flag	Coverage Δ
CI-SqlClient	?
PR-SqlClient-Project	64.74% <90.62%> (?)

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[mdaigle]

Overall, I have some concerns about existing behavior that we have copied over without explanation and I would like to remove any unnecessary refactors.

[mdaigle]

Thank you for making those changes. I'll do another review pass on Monday.

[campersau]

Throwing exceptions is a breaking change, but not sure if somebody used it. So I am fine either way (validation or doc or both).

[mdaigle]

Those changes look good. Let's note the restriction in a doc comment.

[campersau]

I updated the doc comments.

[mdaigle]

/azp run

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[mdaigle]

@cheenamalhotra this is ready for another review

[cheenamalhotra]

/azp run

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[cheenamalhotra]

Mentioning @Wraith2 if he's interesting in reviewing too as the primary contributor of SqlBatch support in the driver :)

[mdaigle]

/azp run

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