added a test case for using the kotlin.browser package from JS (which fails so far, but its a start ;)

libraries/examples/browser-example/src/test/kotlin/sample/SampleTest.kt

@@ -0,0 +1,9 @@
+package test.sample
+
+import org.junit.Test
+
+class SampleTest {
+    Test fun dummy(): Unit {
+
+    }
+}