018: WebAssembly runner, a real-world use case

I was toying with the idea of using WebAssembly runner as a plugin / extension mechanism from a Go (host) program to extend the capabilities of a program at runtime.

* min/max bult-ins coming in 1.21: https://tip.golang.org/ref/spec#Min_and_max
* wazero: https://github.com/tetratelabs/wazero
* wasmr: https://github.com/wasmerio/wasmer-go
* StaticBackend: https://github.com/staticbackendhq/core