[Gradle, JS] Add simple files without kotlinx.html

^KT-41696 fixed

libraries/tools/new-project-wizard/resources/org/jetbrains/kotlin/tools/projectWizard/templates/simpleJsClient/SimpleTest.kt.vm

@@ -0,0 +1,9 @@
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class TestClient {
+    @Test
+    fun testGreet() {
+        assertEquals("world", greet())
+    }
+} 

libraries/tools/new-project-wizard/resources/org/jetbrains/kotlin/tools/projectWizard/templates/simpleJsClient/simple.kt.vm

@@ -0,0 +1,5 @@
+fun main() {
+    console.log("Hello, #[[${greet()}]]#")
+}
+
+fun greet() = "world"

libraries/tools/new-project-wizard/src/org/jetbrains/kotlin/tools/projectWizard/templates/SimpleJsClientTemplate.kt

@@ -63,6 +63,9 @@ class SimpleJsClientTemplate : JsClientTemplate() {
                 if (useKotlinxHtml.reference.settingValue()) {
                     +(FileTemplateDescriptor("$id/client.kt.vm") asSrcOf SourcesetType.main)
                     +(FileTemplateDescriptor("$id/TestClient.kt.vm", "TestClient.kt".asPath()) asSrcOf SourcesetType.test)
+                } else {
+                    +(FileTemplateDescriptor("$id/simple.kt.vm") asSrcOf SourcesetType.main)
+                    +(FileTemplateDescriptor("$id/SimpleTest.kt.vm", "TestClient.kt".asPath()) asSrcOf SourcesetType.test)
                 }
             }
         }