[nodes] Added a Backdrop Node Plugin.

Author: waaake

meshroom/nodes/aliceVision/BasicBackdrop.py

@@ -0,0 +1,13 @@
+""" A Backdrop node.
+"""
+__version__ = "1.0"
+
+from meshroom.core import desc
+
+
+class Backdrop(desc.Backdrop):
+    """ A Basic Backdrop node.
+    """
+
+    # Is a Utility Node
+    category = "Utils"