Added deprecation warning to legacy recorder

Author: tomakehurst

src/main/java/com/github/tomakehurst/wiremock/stubbing/StubMappingJsonRecorder.java

@@ -33,6 +33,10 @@
 import java.util.UUID;
 import java.util.stream.Collectors;
 
+/**
+ * @deprecated this is the legacy recorder and will be removed before 3.x is out of beta
+ */
+@Deprecated
 public class StubMappingJsonRecorder implements RequestListener {
 
   private final BlobStore mappingsBlobStore;

src/test/java/com/github/tomakehurst/wiremock/stubbing/StubMappingJsonRecorderTest.java

@@ -46,6 +46,10 @@
 import org.junit.jupiter.api.Test;
 import org.skyscreamer.jsonassert.JSONCompareMode;
 
+/**
+ * @deprecated this test is for the legacy recorder which will be removed before 3.x is out of beta
+ */
+@Deprecated
 public class StubMappingJsonRecorderTest {
 
   private StubMappingJsonRecorder listener;