Add clj-kondo support for defstate macro

[D00mch]

Lib users will have hooks copied into their local .clj-kondo folder:

Demo (defstate behaves like defonce, :start is required):

Clj-kondo lib's hooks examples: clj-kondo/clj-kondo#1528

[aroemers]

Thanks for the PR. Know that I am looking at it and will provide feedback soon.

[aroemers]

@D00mch, Thanks again for the PR. While reviewing I saw that the implementation was not handling docstrings and metadata maps yet (defstate supports them, equal to a regular defn). It also didn't account yet for the implicit this parameter in the :stop expression.

I took the liberty of giving a try myself. Instead of using the analyze-call hook, I opted to use the macroexpand hook. I find it easier to work with.

Can you try your this version in your editor? (nice animations by the way!)

[D00mch]

Yes, it work great, and macroexpand is a better fit

[aroemers]

Thanks for testing! It is released as 2.3.0.