Adding support for batch and write in cdc data generator

[shreyakhajanchi]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 82.90993% with 74 lines in your changes missing coverage. Please review.
✅ Project coverage is 53.71%. Comparing base (d9ed584) to head (00c17db).

Files with missing lines	Patch %	Lines
...eleport/v2/templates/dofn/DataGeneratorEngine.java	82.64%	14 Missing and 24 partials ⚠️
...ud/teleport/v2/templates/dofn/BatchAndWriteFn.java	79.51%	11 Missing and 6 partials ⚠️
...cloud/teleport/v2/templates/utils/SchemaUtils.java	84.84%	3 Missing and 12 partials ⚠️
...cloud/teleport/v2/templates/dofn/RowAssembler.java	55.55%	3 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #3778      +/-   ##
============================================
+ Coverage     53.52%   53.71%   +0.19%     
+ Complexity     6636     6338     -298     
============================================
  Files          1082     1087       +5     
  Lines         65868    66295     +427     
  Branches       7332     7420      +88     
============================================
+ Hits          35254    35613     +359     
- Misses        28257    28281      +24     
- Partials       2357     2401      +44     

Components	Coverage Δ
spanner-templates	72.83% <ø> (-0.02%)	⬇️
spanner-import-export	68.64% <ø> (-0.03%)	⬇️
spanner-live-forward-migration	80.93% <ø> (-0.02%)	⬇️
spanner-live-reverse-replication	77.08% <ø> (-0.02%)	⬇️
spanner-bulk-migration	91.10% <ø> (-0.01%)	⬇️
gcs-spanner-dv	85.74% <ø> (-0.02%)	⬇️

Files with missing lines	Coverage Δ
...oud/teleport/v2/templates/dofn/LifecycleEvent.java	100.00% <100.00%> (ø)
...eleport/v2/templates/model/DataGeneratorTable.java	100.00% <100.00%> (ø)
...d/teleport/v2/templates/model/GeneratedRecord.java	100.00% <100.00%> (ø)
...eleport/v2/templates/transforms/BatchAndWrite.java	100.00% <100.00%> (ø)
...e/cloud/teleport/v2/templates/utils/Constants.java	0.00% <ø> (ø)
...cloud/teleport/v2/templates/dofn/RowAssembler.java	84.95% <55.55%> (-2.55%)	⬇️
...cloud/teleport/v2/templates/utils/SchemaUtils.java	87.41% <84.84%> (-2.39%)	⬇️
...ud/teleport/v2/templates/dofn/BatchAndWriteFn.java	79.51% <79.51%> (ø)
...eleport/v2/templates/dofn/DataGeneratorEngine.java	82.64% <82.64%> (ø)

... and 5 files with indirect coverage changes

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