This CL introduces ninjalog_uploader to autoninja for posix environment.
This is to collect build statistics from googler to find user side build performance bottleneck.

ninjalog_uploader_wrapper is used to notify user and manage small config of upload script.

Bug: 900161
Change-Id: I48ac8cd1d52f64e8fdafaec43636d2d79ef9040d
Reviewed-on: https://chromium-review.googlesource.com/c/1345255Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: Shinya Kawanaka <shinyak@chromium.org>
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>