Move PerObjectSettings from Uranium to Cura

This tool is deemed Cura-specific, so it is moved to Cura. This prevents it from being included in other Uranium applications.

plugins/PerObjectSettingsTool/PerObjectSettingsTool.py

@@ -0,0 +1,18 @@
+# Copyright (c) 2015 Ultimaker B.V.
+# Uranium is released under the terms of the AGPLv3 or higher.
+
+from UM.Tool import Tool
+
+from . import PerObjectSettingsModel
+
+class PerObjectSettingsTool(Tool):
+    def __init__(self):
+        super().__init__()
+
+        self.setExposedProperties("Model")
+
+    def event(self, event):
+        return False
+
+    def getModel(self):
+        return PerObjectSettingsModel.PerObjectSettingsModel()