PVF: NaN canonicalization & deteriministic stack (#9069)

* NaN canonicalization

* Introduce a simple stack depth metering

* Be explicit about the wasm features we enable

* Pull the latest latast fix for the pwasm-utils crate

* Disable `wasm_threads` as well.

* Factor out deterministic stack params

* Add more docs

* Remove redundant dep

* Refine comments

* Typo

Co-authored-by: Andronik Ordian <write@reusable.software>

Co-authored-by: Andronik Ordian <write@reusable.software>

substrate/client/executor/wasmtime/src/lib.rs

@@ -24,6 +24,10 @@ mod runtime;
 mod state_holder;
 mod util;
 
+#[cfg(test)]
+mod tests;
+
 pub use runtime::{
 	create_runtime, create_runtime_from_artifact, prepare_runtime_artifact, Config, Semantics,
+	DeterministicStackLimit,
 };