Add mapping for from/to fields in issue rename event

src/main/java/org/kohsuke/github/GHIssueRename.java

@@ -0,0 +1,32 @@
+package org.kohsuke.github;
+
+/**
+ * The type GHIssueRename.
+ *
+ * @see <a href="https://docs.github.com/en/developers/webhooks-and-events/events/issue-event-types#renamed">Github
+ *      documentation for renamed event</a>
+ *
+ * @author Andrii Tomchuk
+ */
+public class GHIssueRename {
+    private String from = "";
+    private String to = "";
+
+    /**
+     * Old issue name.
+     *
+     * @return old issue name
+     */
+    public String getFrom() {
+        return this.from;
+    }
+
+    /**
+     * New issue name.
+     *
+     * @return new issue name
+     */
+    public String getTo() {
+        return this.to;
+    }
+}