Introduce prepare_pub_packages.py helper script for uploading pub packages
Introduce prepare_pub_packages.py helper script for uploading pub packages

Usage:

$ python mojo/tools/prepare_pub_packages.py --out-dir=/tmp/foobar out/

Will produce mojo, sky, and mojom packages under /tmp/foobar using out/android_Release as input.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1169953002

jianglu/mojo,afandria/mojo,chinmaygarde/mojo,afandria/mojo,chinmaygarde/mojo,jianglu/mojo,jianglu/mojo,afandria/mojo,chinmaygarde/mojo,afandria/mojo,afandria/mojo,chinmaygarde/mojo,afandria/mojo,chinmaygarde/mojo,afandria/mojo,jianglu/mojo,chinmaygarde/mojo,chinmaygarde/mojo,jianglu/mojo,chinmaygarde/mojo,chinmaygarde/mojo,jianglu/mojo,jianglu/mojo,jianglu/mojo,afandria/mojo