Re-Add APK Processing Ability

[antitree]

Due to how integrated the androidmanifest.xml file is with the rest of the APK, it makes sense to put APK processing back into this project. This is most likely already implemented in androguard's apk.py but will need to be updated.

Steps to complete:

1. review androguard's apk processing
2. decide whether to process entire apk or specific files related to the manifest file

[originally reported by pee]

[pee]

It's certainly an interesting API design question. Not sure I have a good answer unfortunately. Minimally to fill in an entire manifest we need to be able to extract resource strings. Which means the .asrc file and possible R.class!

[adesnos]

We can work to improve this module if you wish.

What kind of things we need exactly ?