Update MessageHeaderWarp.java

Author: MentosL

arex-instrumentation/mq/arex-integration-mqtt/src/main/java/io/arex/inst/mqtt/warp/MessageHeaderWarp.java

@@ -42,8 +42,14 @@ public MessageHeaderWarp(Map<String, Object> headers, UUID id, Long timestamp) {
     }
 
 
+    public Object put(String key, Object value){
+        this.headers.put(key,value);
+        return value;
+    }
 
-
+    public void remove(String key){
+        this.headers.remove(key);
+    }
 
     public Map<String, Object> getHeaders() {
         return Collections.unmodifiableMap(headers);