{store,dir}/filesystem: move under exp/

They're still linked into dirserver and storeserver. Maybe they
shouldn't be. But it should at least be made clear that they're
experimental.

Change-Id: Iac5c8275ef5fa109bd494d24305aac5d95948e89
Reviewed-on: https://upspin-review.googlesource.com/7912
Reviewed-by: Rob Pike <r@google.com>
4 files changed
tree: 1b9b7acfe981ec4957fcac09548c4c4585527a36
  1. README.md
  2. client/
  3. cmd/
  4. dir/
  5. store/
README.md

Experimental components

This directory contains components that are experimental or under development.