Implement Reddit loader

[grumpyp]

Reading through Reddit can take an enormous amount of time, if you just want to get a summary or a you have specific on a long discussion.

Implement the API of Reddit / a way to get Reddit discussions into the "AIxplora brain".

[Sadaf-A]

Hey @grumpyp, I've done something similar before I integrated GitHub API into our application.
I would like to give this a shot. If you could please assign me.

[grumpyp]

Awesome. Lets go 🚀