feat(Spanner): Bulk MIgration: add SQL Server source support including connector implementation, dialect adapter, and configuration mappings

[pratickchokhani]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 19.17293% with 215 lines in your changes missing coverage. Please review.
✅ Project coverage is 62.74%. Comparing base (d9fa0f1) to head (9cae5da).

Files with missing lines	Patch %	Lines
...lectadapter/sqlserver/SqlServerDialectAdapter.java	0.00%	123 Missing ⚠️
...rowmapper/provider/SqlServerJdbcValueMappings.java	0.00%	53 Missing ⚠️
...rce/sqlserver/SqlServerSrcToSpSourceConnector.java	56.75%	31 Missing and 1 partial ⚠️
...apper/config/defaults/SqlServerConfigDefaults.java	0.00%	7 Missing ⚠️

❌ Your patch check has failed because the patch coverage (19.17%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #4185      +/-   ##
============================================
+ Coverage     55.90%   62.74%   +6.83%     
+ Complexity     7477     2792    -4685     
============================================
  Files          1134      566     -568     
  Lines         70135    32878   -37257     
  Branches       8014     3667    -4347     
============================================
- Hits          39212    20629   -18583     
+ Misses        28377    11205   -17172     
+ Partials       2546     1044    -1502     

Components	Coverage Δ
spanner-templates	83.66% <19.17%> (-0.99%)	⬇️
spanner-import-export	∅ <ø> (∅)
spanner-live-forward-migration	88.66% <100.00%> (+<0.01%)	⬆️
spanner-live-reverse-replication	81.27% <100.00%> (+<0.01%)	⬆️
spanner-bulk-migration	87.54% <19.17%> (-1.53%)	⬇️
gcs-spanner-dv	87.87% <100.00%> (+<0.01%)	⬆️

Files with missing lines	Coverage Δ
...v2/reader/io/jdbc/iowrapper/config/SQLDialect.java	100.00% <100.00%> (ø)
...oud/teleport/v2/source/SourceConnectorFactory.java	100.00% <100.00%> (ø)
...ort/v2/spanner/migrations/constants/Constants.java	0.00% <ø> (ø)
...r/migrations/source/config/SourceConfigParser.java	79.54% <ø> (ø)
...2/spanner/migrations/source/config/SourceType.java	100.00% <100.00%> (ø)
...apper/config/defaults/SqlServerConfigDefaults.java	0.00% <0.00%> (ø)
...rce/sqlserver/SqlServerSrcToSpSourceConnector.java	56.75% <56.75%> (ø)
...rowmapper/provider/SqlServerJdbcValueMappings.java	0.00% <0.00%> (ø)
...lectadapter/sqlserver/SqlServerDialectAdapter.java	0.00% <0.00%> (ø)

... and 592 files with indirect coverage changes

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