Add destructor to Machine_info class to fix segfault

sources/machine_info.cpp

@@ -150,6 +150,14 @@ void Machine_info::send_info_to_debug()
 		}
 }
 
+/**
+	@brief Machine_info::~Machine_info
+	destructor
+*/
+Machine_info::~Machine_info()
+{
+}
+
 /**
 	@brief Machine_info::init_get_Screen_info
 	Finds the largest screen and saves the values

sources/machine_info.h

@@ -34,6 +34,7 @@ public:
 	int32_t i_max_screen_height();
 	QString compilation_info();
 	void send_info_to_debug();
+	~Machine_info();
 
 signals: