V8 project metadata

Added project.cfg metadata file for chrome-infra

R=machenbach@chromium.org, sergiyb@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=507723

Review URL: https://codereview.chromium.org/1230823005

Cr-Commit-Position: refs/heads/master@{#29613}

infra/project-config/project.cfg

+# For the schema of this file and documentation, see ProjectCfg message in
+# https://luci-config.appspot.com/schemas/projects:project.cfg
+
+name: "V8"
+access: "group:all" # public