Fix populating of TYPE_SCHEMA column in StructuredTypeMembers metadata

[tf-micwil]

Fixes for #1498

• Updated the FROM clause on the SELECT statement for StructuredTypeMembers metadata to use the schema name from sys.table_types.
• Added StructuredTypeMembers to SqlClientMetaDataCollectionNames
• Added unit tests for StructuredTypeMembers

I was unable to run the tests as I don't have access to a required nuget package in test project.

[dnfadmin]

All CLA requirements met.

[Wraith2]

Looks good in general.

The nuget comes from the package source in the nuget.config file in the src directory, everything below that directory should pick it up. I can run tests locally but I've been doing it for a while so if something has broken I might already have the nuget packages locally. Specifically which packages failed to restore?

[tf-micwil]

@Wraith2: Microsoft.Data.SqlClient.ManualTesting.Test is reporting that Microsoft.DotNet.RemoteExecutor (5.0.0-beta.20206.4) is not available in the dotnet-public package source.

[Wraith2]

I don't have that package locally and I haven't had that problem (but then i haven't opened any PR's in a while since I.m waiting.). Remote executor is needed for tests that are going to run in the ci as an external process so you may not need it to check your work locally.

[JRahnama]

/azp run

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[codecov]

Codecov Report

Merging #1500 (582626b) into main (845902c) will increase coverage by 5.93%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1500      +/-   ##
==========================================
+ Coverage   65.47%   71.41%   +5.93%     
==========================================
  Files         295      295              
  Lines       62125    62126       +1     
==========================================
+ Hits        40678    44368    +3690     
+ Misses      21447    17758    -3689     

Flag	Coverage Δ
addons	92.38% <ø> (+92.38%)	⬆️
netcore	74.89% <100.00%> (+5.88%)	⬆️
netfx	69.22% <100.00%> (+5.59%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...Data/SqlClient/SqlClientMetaDataCollectionNames.cs	100.00% <100.00%> (ø)
...nt/src/Microsoft/Data/ProviderBase/TimeoutTimer.cs	71.42% <0.00%> (-3.58%)	⬇️
.../Microsoft/Data/SqlClient/SNI/SNIMarsConnection.cs	76.72% <0.00%> (-0.63%)	⬇️
...c/Microsoft/Data/SqlClient/TdsParserStateObject.cs	81.85% <0.00%> (-0.08%)	⬇️
...re/src/Microsoft/Data/SqlClient/SNI/SNINpHandle.cs	73.29% <0.00%> (ø)
...rc/Microsoft/Data/ProviderBase/DbConnectionPool.cs	86.36% <0.00%> (ø)
...crosoft/Data/SqlClient/SqlInternalConnectionTds.cs	73.54% <0.00%> (+0.09%)	⬆️
...crosoft/Data/SqlClient/SqlInternalConnectionTds.cs	68.26% <0.00%> (+0.17%)	⬆️
...c/Microsoft/Data/SqlClient/SqlClientEventSource.cs	80.13% <0.00%> (+0.34%)	⬆️
...SqlClient/src/Microsoft/Data/SqlClient/SqlEnums.cs	77.37% <0.00%> (+0.63%)	⬆️
... and 55 more

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