Merge "add BuildContext class and fix enabled features" into main am: b2c2fe88

Original change: https://android-review.googlesource.com/c/platform/build/+/3236364



Change-Id: I8a0f8474a1a206da0cbbae60fe2fd6fb635cdd0c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>