Add support for label storage in local content store

Allows running tests which require labels on the content store

Signed-off-by: Derek McGowan <derek@mcgstyle.net>

content/local/store_windows.go

@@ -8,3 +8,7 @@ import (
 func getStartTime(fi os.FileInfo) time.Time {
 	return fi.ModTime()
 }
+
+func getATime(fi os.FileInfo) time.Time {
+	return fi.ModTime()
+}