added back clear CommandMessage function

ipc/CommandMessage.cpp

@@ -68,6 +68,10 @@ size_t CommandMessage::getMinimumMessageSize() const {
     return MINIMUM_COMMAND_MESSAGE_SIZE;
 }
 
+void CommandMessage::clearCommandMessage() {
+    clear();
+}
+
 void CommandMessage::clear() {
     CommandMessageCleaner::clearCommandMessage(this);
 }

ipc/CommandMessage.h

@@ -111,7 +111,9 @@ public:
     ReturnValue_t getReplyRejectedReason(
             Command_t* initialCommand = nullptr) const override;
 
+
     virtual void clear() override;
+    void clearCommandMessage();
 
     /**
      * Extract message ID, which is the first byte of the command ID for the