Merge "Lightweight ninja writer in Python" am: 69b1b0c1 am: 92fb295d

Original change: https://android-review.googlesource.com/c/platform/build/+/2094485



Change-Id: I218937017a6838bfa0e489a787120c7ee0c7f90b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>