Improve ARSC obfuscation resilience

There are still a few cases where some junk data near the end of the file seems to make processing end earlier than it should. We get most of the data out, which is nice though.

We currently handle gracefully ending early here: https://github.com/Col-E/binary-resources/blob/master/src/main/java/com/google/devrel/gmscore/tools/apk/arsc/Chunk.java#L332