Added Bot Authorization Annotation

src/main/java/co/aurasphere/botmill/core/annotation/BotAuthorization.java

@@ -0,0 +1,16 @@
+package co.aurasphere.botmill.core.annotation;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Documented
+@Target(ElementType.METHOD)
+@Inherited
+@Retention(RetentionPolicy.RUNTIME)
+public @interface BotAuthorization {
+
+}