[Cairo 1.0] Add transform Tree-Sitter -> Generic AST

[Frostweeds]

PR checklist:

• Purpose of the code is evident to future readers
• Tests included or PR comment includes a reproducible test plan
• Documentation is up-to-date
• A changelog entry was added to changelog.d for any user-facing change
• Change has no security implications (otherwise, ping security team)

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[aryx]

Can you add a toplevel comment explaining the goal of the module and how it came to be.
For example did you start by copy-pasting code from Parse_rust_tree_sitter.ml?
Or you wrote it from scratch?

[Frostweeds]

Yes I copy-pasted everything that was below entry point and I've written everything else from scratch.

When you says "how it came to be" you mean the reason why we wanted to have Cairo 1.0 supported by Semgrep ?

[aryx]

No I meant how was the code written. For example if lots of it was copy-pasted from Parse_rust_tree_sitter.ml,
that can be useful to know for the reader, because maybe some further update of Rust will lead to further
update of Cairo in which case we could just copy-paste again code from Parse_rust_tree_sitter.ml to Parse_cairo_tree_sitter.ml to save time.

[Frostweeds]

Is it fine like that ?

[aryx]

you also need to install pre-commit and the right version of ocamlformat.

[aryx]

you can try 'make dev-setup'

[aryx]

need pre-commit and ocamlformat compliant code.

[aryx]

perfect