Added Mainsail print host

src/slic3r/Utils/OctoPrint.hpp

@@ -139,6 +139,16 @@ protected:
     void set_http_post_header_args(Http& http, PrintHostPostUploadAction post_action) const override;
 };
 
+
+class Mainsail : public OctoPrint
+{
+public:
+    Mainsail(DynamicPrintConfig* config) : OctoPrint(config) {}
+    ~Mainsail() override = default;
+
+    const char* get_name() const override { return "Mainsail/Fluidd"; }
+};
+
 }
 
 #endif