Check function results in excel imports

[ddimaria]

We currently use quadratic-rust-shared/data/excel/all_excel_functions.xlsx to validate excel imports, but do not validate the results of the function imports in import_all_excel_functions(), located at quadratic-core/src/controller/user_actions/import.rs.

• [ ] Ensure all supported Quadratic are in there, taking note of the output values in excel.
• [ ] Update the test to validate the function results