veyron/services/mgmt/device/impl: share packages across instances

Instead of making a fresh copy of all package dirs and files for each new
instance, only create them once in the version directory, and add a symlink from
each instance.

To make this work in multi-user mode, change the permissions for the created
package dirs and files to 755.

Change-Id: I28ac21f69ade980824349b1aa435bf19baac51f7
3 files changed
tree: 5935162cdbeaaa860546920cf28bc0fb2dc10d4c
  1. lib/
  2. profiles/
  3. runtimes/
  4. security/
  5. services/
  6. tools/