Anchor 0.30.0 IDL Support

[kespinola]

Goal

Kinobi is able to generate clients based on the latest IDL spec by Anchor introduced in the latest version (0.30.0).

solana-foundation/anchor#2824

[lorisleiva]

Hey 👋 Thanks for raising this. I've got this on my to-do list. 🙂

[kespinola]

@lorisleiva I'm happy to get this started unless its on your short list.

[lorisleiva]

@kespinola Oh that'd be super useful yeah. I'm currently working on extracting Kinobi to its own monorepo (so people can pick more granular modules) but if you work on that here, I can bring your changes to the next monorepo afterwards.