[Wasm] Add box and stdlib tests in wasi mode

wasm/wasm.tests/wasiBoxTestRun.kt

@@ -0,0 +1,14 @@
+/*
+ * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+@kotlin.wasm.WasmExport
+fun runBoxTest(): Boolean {
+    val boxResult = box() //TODO: Support non-root package box functions
+    val isOk = boxResult == "OK"
+    if (!isOk) {
+        println("Wrong box result '${boxResult}'; Expected 'OK'")
+    }
+    return isOk
+}