So far a very basic version.
In case there is a diff, soong will emit an error message with a command
to resolve the diff. Example:
New unexpected files were added to com.android.apex.cts.shim.v3. To fix the build run following command:
system/apex/tools/update_whitelist.sh system/apex/shim/build/default_shim_whitelist.txt out/soong/.intermediates/system/apex/shim/build/com.android.apex.cts.shim.v3/android_common_com.android.apex.cts.shim.v3/com.android.apex.cts.shim.v3-content.txt
Test: m checkbuild
Bug: 139125405
Change-Id: I57e694f394c56105dc7363a684983605c7bf5e7d
5d5ae761c5