Allow resource files to be removed from the final artifact based on the
density and locale configuration in the config file. The APK is split
along the density, locale and ABI axis. Each split is generated from the
original APK without modifying the original. The new resource table is
written back to the file system with unneeded assets etc removed.
Test: Unit tests
Test: Manually run optimize command against an APK and inspect results
Test: Installed split searchlite APK (after resigning) and ran on N6
Change-Id: If73597dcfd88c02d2616518585d0e25a5c6a84d1
Locale deduping isn't straightforward, as parenting rules
change between platform versions and the selection
preference of a specific locale variant over the default
configuration lead to incorrect results at runtime.
Bug: 62409213
Test: make aapt2_tests
Change-Id: Iec8f1cfba7ae43c847d163529891fdc15f3db826
Generating splits should be possible to do from the optimize command.
This means that a lot of infrastructure around split APKs can be
shared by both the optimize and link phase.
Bug: 35925830
Change-Id: Ia88b9e4bff300a56353b2f7a4a2547c8eb43a299
Test: manual
