Implement Winscope ADB connect.

The objective of this feature is to simplify the process
of debugging window transition issues by implementing
an automated trace capture flow for the WindowManager
and SurfaceFlinger trace analysis tool - Winscope.
By creating a bridge between the browser-based Winscope
and locally running ADB server traces can be captured
with a single click.

Design doc: https://goto.google.com/winscope-adb-connect

Bug:
Test: yarn run dev & python3 adb_proxy/winscope_proxy.py
Change-Id: I13ee2274566de5e63c89a9e292708416b654fc65
Merged-In: I13ee2274566de5e63c89a9e292708416b654fc65
6 files changed