Feature: Add onError hook support

[nurrony]

What this MR does?

Add hook support for download process like below

const downloader = new HLSDownloader({
  onError: (error) => {
     console.error('error details', error);
  }
})

Error Object Details

// logs
{
  url: "<URLofTheItem>",
  name: "<ErrorName>",
  message: "<HumanReableMessage>",
  total: "<TotalItemToDownload>",
}

Are there points in the code the reviewer needs to double check?

N/a

Why was this MR needed?

Check #147

Dependent MR Link
N/A

Does this MR meet the acceptance criteria?

• Documentation created/updated
• Code Commenting
• Conform by the style guides
• Add required test scripts
• Squashed related commits together

[github-actions]

🎉 This issue has been resolved in version 3.2.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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