@Override
	public IsfTypedefPointer newTypedefPointer(TypeDef typeDef) {
		return new ExtIsfTypedefPointer(typeDef);
	}
Writes the root type as ISF JSON using the underlying writer. For now, ignoring top-level
bit-fields and function defs as unsupported by ISF. Typedefs really deserve their own
category, but again unsupported.

@param dt the root type to write as ISF JSON
@param monitor the task monitor
@throws IOException if there is an exception writing the output
Ghidra/Features/Sarif/src/main/java/sarif/export/data/ExtIsfDataTypeWriter.java