No Error Thrown If File Path Is Invalid For df.readCSV? #456

Describe the bug
When an invalid filepath is passed into df.readCSV, no errors are thrown and the request is never resolved. Are we supposed to check for validity of filepath ourselves before passing it into the function?

To Reproduce
Use the following code:

import * as dfd from "danfojs-node";

dfd.readCSV("invalid-filepath.csv")
  .then((df) => {
    // some code
  })
  .catch((error) => {
    console.log(error)
  })

Expected behavior
Should throw an error.

Additional context
Using danfojs-node v1.1.1