Task to generate api diffs

Example output:
Android Gradle plugin API updates
com.android.build.api.attributes.ProductFlavorAttr.Companion is now stable
com.android.build.api.variant.DslLifecycle is now stable

Bug: 273745751
Test: manual
Change-Id: I7f943847b93a7ba0e61da14d3c9be04af7eb043f
4 files changed