fix(dfns): add tagged attribute to field schema (#304)

Author: wpbonelli

autotest/test_dfns.py

@@ -422,7 +422,7 @@ def test_fieldv1_to_fieldv2_conversion():
     assert save_flows.type == "keyword"
     assert save_flows.block == "options"
     assert save_flows.description == "save calculated flows"
-    assert not hasattr(save_flows, "tagged")
+    assert hasattr(save_flows, "tagged")
     assert not hasattr(save_flows, "in_record")
     assert not hasattr(save_flows, "reader")
 

modflow_devtools/dfns/schema/field.py

@@ -19,3 +19,4 @@ class Field:
     shape: str | None = None
     valid: tuple[str, ...] | None = None
     netcdf: bool = False
+    tagged: bool = False