bluetooth_socket: add commands to add & remove device from action list

BUG=chromium:433561
TEST=test with an autotest

Change-Id: I110d2d1dd1a934f78de29de54c50cec79650821d
Reviewed-on: https://chromium-review.googlesource.com/232491
Tested-by: Scott James Remnant <keybuk@chromium.org>
Reviewed-by: Arman Uguray <armansito@chromium.org>
Commit-Queue: Scott James Remnant <keybuk@chromium.org>
3 files changed