anipose metadata fix

metadata.yaml

@@ -315,3 +315,10 @@
   shared_by:
     name: "Tuthill lab"
     affiliation: "University of Washington"
+  frame:
+    file_name: null
+    sha256sum: null
+  video:
+    file_name: null
+    sha256sum: null
+  note: "This file was provided by the Tuthill lab, and is used in the Anipose paper."