buffet: Parse buffet config and load/save state

State is loaded and saved as black box string.

BUG=brillo:1257,brillo:1253
TEST=`FEATURES=test emerge-gizmo libweave buffet`

Change-Id: I21d2b26cf90a046cdba505ab0f265a29f53f9a2b
Reviewed-on: https://chromium-review.googlesource.com/293917
Tested-by: Vitaly Buka <vitalybuka@chromium.org>
Reviewed-by: Vitaly Buka <vitalybuka@chromium.org>
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Commit-Queue: Vitaly Buka <vitalybuka@chromium.org>
3 files changed
tree: e043bcdc828ba08234ed0766ac9c68ed26852ded
  1. libweave/