[Telemetry] Use ModuleGraph instead of modulefinder to get a detailed import
dependency information.
Hopefully this helps us figure out which package import ply on mac10.8 test bot.
Summary of changes:
Add telemetry/third_party/modulegraph
Add telemetry/third_party/altgraph
Modify find_dependencies.py & find_dependencies_unittest.py
Update telemetry/PRESUBMIT.py to include modulegraph & altgraph
Supress PRESUBMIT check due to PRESUBMIT complain about " =======" marker in the license file.
NOPRESUBMIT=true
BUG=522335
Review URL: https://codereview.chromium.org/
1301443004
Cr-Commit-Position: refs/heads/master@{#344657}