* remove ≔ from the language and replace it by :=
* revert accidental changes in juvix input mode
* update stdlib submodule
* rename ℕ by Nat in the tests and examples
* fix shell tests
* import all non-compile axioms with alphanum names in entrypoint
This commit adds `__attribute__((input_name(<name>)))` to the type
signature of all axioms that do not have a compile block. This indicates
to the compiler that this function should be added to the input table of
the WASM binary.
Adds a test that an imported function can be called from Juvix.
* test: Run node command in same directory as WASM output
* Don't generate importName for non-alphnum axioms
* Add a tutorial on Juvix module to JS interop via Wasm
