Hey-py

What's new:

- **Sessions**
Each session is tied to a terminal. The output of `tty` command is used to get the current terminal. On non unix platforms, one session is persisted between all terminals.
Each session has a TTL (time to live) of 5 minutes. When the time is up, it is deleted on the next run.

Sessions are stored in {tmpdir}/hey-duck-session-TTYID

Current session can be cleared with `--clear` flag
- **Cache**
Removed in favor of sessions

Binaries are signed with GPG key `A6C038E03D212D06575053ADA622C22C9BC616B2`, import it and old key's revocation from https://blek.codes/key.asc

What's new:

- Added llama and mixtral models

Binaries are signed with GPG key `59F46DB850CA447F36371DED14546221E3595D0C`

What's new:

1. Config file does not longer store model versions, except for `GPT3`.
2. The API has changed, so the requests had to be changed as well
3. GPT3 finally works as expected

Binaries are signed with key `59F46DB850CA447F36371DED14546221E3595D0C`