added impl for @UtilityClass.

test/transform/resource/before/UtilityClass.java

@@ -0,0 +1,20 @@
+@lombok.experimental.UtilityClass
+class UtilityClass {
+	private String someField;
+	
+	void someMethod() {
+		System.out.println();
+	}
+	
+	protected class InnerClass {
+		private String innerInnerMember;
+	}
+}
+class UtilityInner {
+	static class InnerInner {
+		@lombok.experimental.UtilityClass
+		class InnerInnerInner {
+			int member;
+		}
+	}
+}