Add a per-row Export button (files and folders) that downloads the filer
metadata in the length-prefixed FullEntry protobuf format that weed shell
fs.meta.load reads, gzipped as <name>.meta.gz like fs.meta.save. Folders are
walked recursively via the filer BFS metadata stream, excluding the system
log subtree. Streamed over gRPC so it keeps working with the filer HTTP
listener disabled.
Chris LuandGitHub
7c5ca01027