Enable create / delete code command-args for datamodel_se

[seanpearsonuk]

It should be possible to enable the commented out code in datamodel_se.py.

[seanpearsonuk]

@prmukherj

My local "test" looked like this

import ansys.fluent.core as pf
session = pf.launch_fluent(mode="meshing")
w=session.workflow
w.InitializeWorkflow(WorkflowType="Watertight Geometry")
igt=w.task('Import Geometry')
igt.CommandArguments.CadImportOptions
igt.CommandArguments.CadImportOptions()
igt.CommandArguments.CadImportOptions.OneZonePer
igt.CommandArguments.CadImportOptions.OneZonePer()
igt.CommandArguments.CadImportOptions.OneZonePer.getAttribValue("default")

so we could build something on that with asserts