Create a GPT-4 adapter

[GuiBibeau]

we need a way to send messages to GPT-4

AC:

• create an adapter under the adapter folders
• create the right configuration that reads an API key from env variables
• create a service that will send messages to GPT and accepts a response

[iampaandey]

Assign this issue to me,I have done the same in my projects.

[GuiBibeau]

@iampaandey sure have a go at it! Fork and open a PR once you are ready.

[GuiBibeau]

@iampaandey If you open a PR I will assign this to you. In the mean time I'll keep it unassigned in case anybody works on it