secagent: add user, group

add a single user and group for secagentd.
add secagentd to a user of missived_senders

BUG=b:239187715
TEST=built new image and installed, verified that user and groups were
created.

Cq-Depend: chromium:3824184
Change-Id: Ia4bb42fe03e885aca11fbd1e87404e05dceb3395
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/eclass-overlay/+/3765950
Reviewed-by: Aashay Shringarpure <aashay@google.com>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Commit-Queue: Jason Ling <jasonling@chromium.org>
Reviewed-by: Leonid Baraz <lbaraz@chromium.org>
Tested-by: Jason Ling <jasonling@chromium.org>
Auto-Submit: Jason Ling <jasonling@chromium.org>
3 files changed
tree: 46c021d9ef8c447f7d38030cb0078678f9e10d09
  1. acct-group/
  2. acct-user/
  3. eclass/
  4. metadata/
  5. profiles/
  6. OWNERS
  7. PRESUBMIT.cfg