Add OpenAI plugin

[Liareth]

2023-02-19.20-08-17.mp4

This is a tech demo / prototype for using OpenAI in NWN. I won't be bringing this all the way, I just wanted to make a PR to share and serve as a reference for people working on making this type of feature production ready.

Next steps, if anyone wants to make this production ready:

• We use httplib in two plugins (this and webhook), it needs to be moved to become a shared dependency
• It would be nice if we could use ChatGPT API instead, which could make for higher quality results - there is no public API but check https://github.com/acheong08/ChatGPT for a reverse engineered reference

See NWNX discord thread for module (https://discord.com/channels/382306806866771978/1076960200898121889/1076973592220287127). Note that scripts in NWScript/Example are already included in the module, they're just duplicated here as well for easy reference.

[mtijanic]

(as discussed on discord)

Plugins tied to a specific service - particularly proprietary ones - do not belong in the main repo, so we will not be merging this. It lives on as a PR and a branch on Liareth's repo so folks can use it however they see fit.

What we would merge is a generic async HTTP request/response plugin and a nwscript file that leverages it to talk to OpenAI (or ChatGPT, etc)

Also listed in Awesome-NWNX.md

[invictus2010]

hi there! how might i test this out?

is the best way:

1. pull Liareth:liareth/openai
2. fire it up as an NWNX instance on a VPS
3. log-in via a local client to test it out

i'm on Discord so can chat there if you prefer.