ENH: detect printer uses ssl for local connection

Change-Id: I6131bf5ed1f6d44f0bd761ad6bc3a492ba4945b7
(cherry picked from commit c68d48ecf290e5abd37a97654c5b1f7779f061e2)

src/slic3r/GUI/Jobs/PrintJob.hpp

@@ -39,6 +39,7 @@ public:
 
     std::string m_project_name;
     std::string m_dev_ip;
+    bool        m_local_use_ssl { true };
     std::string m_access_code;
     std::string task_bed_type;
     bool        task_bed_leveling;