adding some code to test the coverage in Sonar

Signed-off-by: Jeromy Cannon <jeromy@swirldslabs.com>

fullstack-examples/src/main/java/com/hedera/fullstack/examples/validators/InvalidStateSignatureValidator.java

@@ -30,4 +30,9 @@ public class InvalidStateSignatureValidator implements Validator {
     public Future<ValidationResult> validate(ValidationContext context) {
         return null;
     }
+
+    public void deleteMe() {
+        // this is a dummy method to test the plugin
+        System.out.println("Hello World!");
+    }
 }

fullstack-gradle-plugin/src/main/java/com/hedera/fullstack/gradle/plugin/FullstackPlugin.java

@@ -24,4 +24,9 @@ public class FullstackPlugin implements Plugin<Project> {
     public void apply(Project project) {
         // currently no implementation is needed
     }
+
+    public void deleteMe() {
+        // this is a dummy method to test the plugin
+        System.out.println("Hello World!");
+    }
 }