Add Astrobox to Print Host options

src/slic3r/Utils/PrintHost.cpp

@@ -15,6 +15,7 @@
 #include "OctoPrint.hpp"
 #include "Duet.hpp"
 #include "FlashAir.hpp"
+#include "AstroBox.hpp"
 #include "../GUI/PrintHostDialogs.hpp"
 
 namespace fs = boost::filesystem;
@@ -45,6 +46,7 @@ PrintHost* PrintHost::get_print_host(DynamicPrintConfig *config)
             case htOctoPrint: return new OctoPrint(config);
             case htDuet:      return new Duet(config);
             case htFlashAir:  return new FlashAir(config);
+            case htAstroBox:  return new AstroBox(config);
             default:          return nullptr;
         }
     } else {