Falashforge 5M network support (#4546)

* build action changes

* Adding flashforge 5M series network support

* Update CMakeLists.txt

* Update Flashforge.cpp

* reverting files for pull request

---------

Co-authored-by: SoftFever <softfeverever@gmail.com>

src/slic3r/Utils/SerialMessage.hpp

@@ -0,0 +1,22 @@
+#ifndef SERIALMESSAGE_H
+#define SERIALMESSAGE_H
+
+#include <string>
+#include "SerialMessageType.hpp"
+
+namespace Slic3r { namespace Utils {
+
+    struct SerialMessage
+    {
+        std::string message;
+        enum SerialMessageType messageType;
+        SerialMessage(std::string m, SerialMessageType mT)
+        {
+            message = m;
+            messageType = mT;
+        }
+    };
+
+    
+}}
+#endif