Enable wrapping 'tee' functionality around build_api commands.

Add args to build_api to use cbuildbot/tee.py rather than tee_wrapper.
The wrapper functionality could be used in recipe code to wrap calls so that
stdout/stderr goes to the screen and is saved in a file that can be read and
stored by analysis engine to be queried later by dremel.

BUG=chromium:1012460
TEST=manual

Change-Id: Ia980ee056a6b31cd06c204eb85552d4ec8e71f8c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/1929762
Tested-by: Michael Mortensen <mmortensen@google.com>
Commit-Queue: Michael Mortensen <mmortensen@google.com>
Reviewed-by: Alex Klein <saklein@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Will Bradley <wbbradley@chromium.org>
diff --git a/scripts/cbuildbot.py b/scripts/cbuildbot.py
index 759cd4f..3e84a83 100644
--- a/scripts/cbuildbot.py
+++ b/scripts/cbuildbot.py
@@ -22,7 +22,6 @@
 from chromite.cbuildbot import builders
 from chromite.cbuildbot import cbuildbot_run
 from chromite.cbuildbot import repository
-from chromite.cbuildbot import tee
 from chromite.cbuildbot import topology
 from chromite.cbuildbot.stages import completion_stages
 from chromite.lib import builder_status_lib
@@ -41,6 +40,7 @@
 from chromite.lib import parallel
 from chromite.lib import retry_stats
 from chromite.lib import sudo
+from chromite.lib import tee
 from chromite.lib import timeout_util
 from chromite.lib import ts_mon_config
 from chromite.lib.buildstore import BuildStore