runtime: implement command line arguments in hosted environments

Implement command line arguments for Linux, MacOS and WASI.

src/runtime/runtime_wasm_js.go

@@ -15,6 +15,11 @@ func _start() {
 	run()
 }
 
+//go:linkname syscall_runtime_envs syscall.runtime_envs
+func syscall_runtime_envs() []string {
+	return nil
+}
+
 var handleEvent func()
 
 //go:linkname setEventHandler syscall/js.setEventHandler