utils - added MoreAnnotations utility class

restx-common/src/main/java/restx/common/MoreAnnotations.java

@@ -0,0 +1,15 @@
+package restx.common;
+
+import com.google.common.base.Function;
+
+import java.lang.annotation.Annotation;
+
+public class MoreAnnotations {
+    public static final Function<Annotation, Class<? extends Annotation>> EXTRACT_ANNOTATION_TYPE = new Function<Annotation, Class<? extends Annotation>>() {
+        @Override
+        public Class<? extends Annotation> apply(Annotation input) {
+            return input.annotationType();
+        }
+    };
+
+}