Teach PinnerService to pin parts of APKs
This change teaches PinnerService how to pin parts of APK files, with
the specific regions of interest described by a small metadata file in
the APK root directory. Apksig has been modified to annotate signed APKs
with pinning metadata.
This CL also fixes a few resource management bugs and enhances the
Test: built dummy camera app, pinned stuff, verified log output
1 file changed