Extracted TypeDeclarationMap from flow and typescript to a common file parsers/utils.js (#34951)

Summary:
This PR is a part of https://github.com/facebook/react-native/issues/34872.
This PR extracts TypeDeclarationMap type from flow and typescript to a common file parsers/utils.js and updates all imports.

## Changelog

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[Internal] [Changed] - Extracted TypeDeclarationMap from flow and typescript to a common file parsers/utils.js.

Pull Request resolved: https://github.com/facebook/react-native/pull/34951

Test Plan:
yarn jest react-native-codegen
<img width="1129" alt="Screenshot 2022-10-12 at 12 13 48 PM" src="https://user-images.githubusercontent.com/87412080/195270569-fc077863-7e51-49e8-92ef-f3991f838d6a.png">

Reviewed By: NickGerleman

Differential Revision: D40296917

Pulled By: cipolleschi

fbshipit-source-id: d073daf0aadc291d5f9d00c003f0161af9e11319