Convert appcompat.sh to a Python binary

Previously, to use `appcompat.sh`, we hardcoded absolute paths for many
dependencies in the `build/core/definitions.mk` file, and the same was
done in `art/tools/veridex/Android.mk`.

This change converts `appcompat.sh` to `appcompat.py` and packages the
necessary files into a `Python binary`. This not only resolves the
issue of hardcoding absolute dependency paths but also allows users to
use the tool directly without having to specify dependency paths,
making it more convenient.

Bug: 343105310
Test: 1. m appcompat
      2. m CarrierConfig (any module with appcompat)
      3. appcompat --dex-file=<apk path>

Change-Id: I6215f42241f58ba7fc6f4ae5846c4b71d9c1be4f