Added transferMeshCommand

TransferMeshCommand.py

@@ -0,0 +1,6 @@
+from Cura.Backend.Command import Command
+
+class TransferMeshCommand(Command):
+    def __init__(self):
+        super(TransferMeshCommand,self).__init__()
+        

__init__.py

@@ -5,4 +5,6 @@ def getMetaData():
     return { "name": "CuraBackend", "type": "Backend" }
 
 def register(app):
-    app.setBackend(CuraEngineBackend())
+    engine = CuraEngineBackend()
+    app.setBackend(engine)
+    engine.addCommand(TransferMeshCommand())