[RFC]: add encoding and decoding functions in stdlib

### Description

This RFC proposes to add encoding and decoding functions to stdlib and possibly support multimodal inputs such as text , jpgs and more. This will have wide ranging implications when transferring data - example when working with cv we transfer video frames encoded. I think this would be beneficial for a lot of other applications as well

### Other

Seeking discussion on weather this should be done , if yes else would be looking to support

### Checklist

- [X] I have read and understood the [Code of Conduct](https://github.com/stdlib-js/stdlib/blob/develop/CODE_OF_CONDUCT.md).
- [X] Searched for existing issues and pull requests.
- [X] The issue name begins with `RFC:`.