Add the skeleton of the plugin

Contributes to CURA-5155.

plugins/UFPReader/UFPReader.py

@@ -0,0 +1,24 @@
+# Copyright (c) 2019 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from UM.Mesh.MeshReader import MeshReader
+from UM.MimeTypeDatabase import MimeType, MimeTypeDatabase
+from cura.Scene.CuraSceneNode import CuraSceneNode
+
+
+class UFPReader(MeshReader):
+
+    def __init__(self) -> None:
+        super().__init__()
+
+        MimeTypeDatabase.addMimeType(
+            MimeType(
+                name = "application/x-ufp",
+                comment = "Cura UFP File",
+                suffixes = ["ufp"]
+            )
+        )
+        self._supported_extensions = [".ufp"]
+
+    def _read(self, file_name: str) -> CuraSceneNode:
+        print("Reading", file_name)