Add Ozone trybot configurations.
-rw-r--r-- 1581 .DEPS.git
-rw-r--r-- 947 .gitignore
-rw-r--r-- 829 DEPS
-rw-r--r-- 979 OWNERS
-rw-r--r-- 5561 PRESUBMIT.py
-rw-r--r-- 702 WATCHLISTS
-rw-r--r-- 456 codereview.settings
drwxr-xr-x - masters
drwxr-xr-x - scripts
drwxr-xr-x - site_config
drwxr-xr-x - slave
drwxr-xr-x - tests
drwxr-xr-x - third_party