Rewrite the client to TypeScript [Help wanted] [CCI]

[timursaurus]

Describe the issue:

Rewriting the while client from JavaScript to TypeScript, including the test suite.
Additionally, improving (IMO.) the folder structure of the project.

Help wanted! Learn more at:
Issue

If you’re interested in helping, contact me through Github or Telegram (@timursaurus)

[timursaurus]

Hello everyone. For those who are interested to help
The development has been moved to this a new repository: GitHub - timursaurus/opensearch-ts at dev