issues/111 Created package-info for reactor.rabbitmq with NonNullApi

Author: vanseverk

src/main/java/reactor/rabbitmq/package-info.java

@@ -0,0 +1,7 @@
+/**
+ * Core package of the Reactor RabbitMQ integration.
+ */
+@NonNullApi
+package reactor.rabbitmq;
+
+import reactor.util.annotation.NonNullApi;