Postprocessing errors

[mdahlhausen]

#186 introduced an post-processing errors; unclear on how many. This is a blocker for post-processing EUSS runs.
First error encountered in LazyFrame:

Traceback (most recent call last):
  File "C:\Users\mdahlhau\Documents\GitHub\NREL\comstock\postprocessing\compare_upgrades.py", line 63, in <module>
    main()
  File "C:\Users\mdahlhau\Documents\GitHub\NREL\comstock\postprocessing\compare_upgrades.py", line 54, in main
    cbecs.export_to_csv_wide()  # May comment this out after run once
  File "C:\Users\mdahlhau\Documents\GitHub\NREL\comstock\postprocessing\comstockpostproc\cbecs.py", line 486, in export_to_csv_wide
    self.data.to_csv(file_path, index=False)
AttributeError: 'LazyFrame' object has no attribute 'to_csv'