MyProjectService.kt: introduce dummy method to visualise code coverage

src/main/kotlin/org/jetbrains/plugins/template/services/MyProjectService.kt

@@ -11,4 +11,9 @@ class MyProjectService(project: Project) {
         System.getenv("CI")
             ?: TODO("Don't forget to remove all non-needed sample code files with their corresponding registration entries in `plugin.xml`.")
     }
+
+    /**
+     * Chosen by fair dice roll, guaranteed to be random.
+     */
+    fun getRandomNumber() = 4
 }