- Build everything in buildDir instead of copy/generate things in src.
settings.gradle
Issue#19
This is mainly a update of gradle itself and new build files. Build files are not working as the current structure is not the same as `Issue#19`.
This mainly do: - move `src/wrapper/java` into `lib/src` (and remove `src/wrapper`) - create `lib/src/cpp` and move all `*.(cpp|h)` in it - move all gradle stuff in `android-kiwix-lib-publisher` into `.` - remove `android-kiwix-lib-publisher`