ENH:support new amsmapping data

jira:[for 2 extruder]

Change-Id: Ie03eae17d600bc68451511a0179f20d1919ff6ea
(cherry picked from commit 0848c26da97c7b74e98645b9a0873fe928fdf631)

src/libslic3r/ProjectTask.hpp

@@ -49,6 +49,10 @@ struct FilamentInfo
     int         ctype = 0;
     std::vector<std::string> colors = std::vector<std::string>();
     int         mapping_result = 0;
+
+    /*for new ams mapping*/
+    std::string ams_id;
+    std::string slot_id;
 };
 
 class BBLSliceInfo {