support [`weval`](https://github.com/bytecodealliance/weval) for AOT compilation after wizening

[gkgoat1]

[ktock]

@gkgoat1 Thanks for opening this. Could you a bit elaborate the proposal? What improvement can we expect from that change?

[gkgoat1]

If the resulting binary is wevaled, alongside with supporting weval in the emulators, the kernel and other static code would be AOT compiled directly to WASM. This might make execution faster, especially with syscall-heavy code.