Use non-spring package names for samples

samples/samples-messaging-stream/src/main/java/com/example/BookDeleted.java

@@ -14,7 +14,7 @@
  *  limitations under the License.
  */
 
-package org.springframework.cloud.contract.verifier.samples.messaging;
+package com.example;
 
 import java.io.Serializable;
 

samples/samples-messaging-stream/src/main/java/com/example/BookListener.java

@@ -14,7 +14,7 @@
  *  limitations under the License.
  */
 
-package org.springframework.cloud.contract.verifier.samples.messaging;
+package com.example;
 
 import java.util.concurrent.atomic.AtomicBoolean;
 

samples/samples-messaging-stream/src/main/java/com/example/BookReturned.java

@@ -14,7 +14,7 @@
  *  limitations under the License.
  */
 
-package org.springframework.cloud.contract.verifier.samples.messaging;
+package com.example;
 
 import java.io.Serializable;
 

samples/samples-messaging-stream/src/main/java/com/example/BookService.java

@@ -14,7 +14,7 @@
  *  limitations under the License.
  */
 
-package org.springframework.cloud.contract.verifier.samples.messaging;
+package com.example;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

samples/samples-messaging-stream/src/main/java/com/example/DeleteSink.java

@@ -14,7 +14,7 @@
  *  limitations under the License.
  */
 
-package org.springframework.cloud.contract.verifier.samples.messaging;
+package com.example;
 
 import org.springframework.cloud.stream.annotation.Input;
 import org.springframework.cloud.stream.messaging.Sink;

samples/samples-messaging-stream/src/main/java/com/example/StreamMessagingApplication.java

@@ -14,7 +14,7 @@
  *  limitations under the License.
  */
 
-package org.springframework.cloud.contract.verifier.samples.messaging;
+package com.example;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;