Added information about packages installed

session_manager.h

@@ -4,6 +4,7 @@
 #include "conexion.h"
 
 #include <string>
+#include <list>
 
 class session_manager
 {
@@ -13,6 +14,7 @@ public:
   bool loggin(std::string username, std::string passwd);
   int install_command(std::string package);
   int remove_command(std::string package);
+  std::list<std::string> get_packages_info();
 };
 
 #endif // SESSION_MANAGER_H