Move Android dependency visualization into src directory

To make Webpack setup easier, the source code has all been moved into a
src/ directory. This allows us to serve, for example, a generated
`package_view.html` on localhost without conflicting with the existing
file with that name.

Bug: 1093962
Change-Id: I27c421c490f14fa92c7e872cd239f2ff1eb45a88
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2292829
Reviewed-by: Samuel Huang <huangs@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: James Long <yjlong@google.com>
Cr-Original-Commit-Position: refs/heads/master@{#788334}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: ce88094da15cd0c2035ca59db543166516dd5c6e
24 files changed