[Gradle, JS] Add debugger.js with debugger statement to stop on the first line in a browser

^KT-56488 fixed

libraries/tools/kotlin-test-js-runner/karma-kotlin-debug-plugin.js

@@ -0,0 +1,8 @@
+/*
+ * 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.
+ */
+
+module.exports = {
+    'framework:karma-kotlin-debug': ['factory', require("./karma-debug-framework")],
+};