Add csv_reader

[ramanishsingh]

Adding a CSV reader.
It uses the built-in csv package to read the csv file line by line.
Gives an option to skip-header and also yield items in a header as key based dictionary.

[pytorch-bot]

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❌ 1 New Failure, 1 Unrelated Failure

As of commit 7572ff5 with merge base 62ec59f ():

NEW FAILURE - The following job has failed:

• Lint / style (gh)
  Process completed with exit code 1.

BROKEN TRUNK - The following job failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• Run StatefulDataLoader Tests / test (macos-latest, 3.12) (gh) (trunk failure)

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