feat: add conversion logic from integer to english (#5540)

* feat: add conversion logic from integer to english

* feat: update DIRECTORY.md

* feat: fix linting issues

* feat: fix build issue

* feat: address review comments

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Co-authored-by: sailok.chinta <sailok.chinta@kotak.com>
Co-authored-by: Alex Klymenko <alexanderklmn@gmail.com>