feat(parsing): handle user parsing error

[axel7083]

Description

As per documentation, we can define a autoTyping with the following

import { parse } from 'js-ini';

const ACCEPTED = ['hello', 'world'];

const content = parse(<string>, {
  autoTyping: (val, section, key) => {
    if (key in ACCEPTED) return val;
    throw new Error(`key ${key} is not valid in section ${section}`);
  },
});

It can be useful to throw an error in this function to ensure the type safety of the content parsed. But above all, when parsing the ParsingError is very valuable as it contains lineNumber information.

Wrapping the user error in a ParsingError improving the parsing capabilities.

Background

I am writing a Language Service for a specific format derived from the .ini, and having a nice way to collect all parsing error is very valuable.

cc @Sdju