Converts the following files to Python logging.
add_img_to_target_files.py
blockimgdiff.py
build_image.py
check_ota_package_signature.py
common.py
img_from_target_files.py
make_recovery_patch.py
ota_from_target_files.py
sparse_img.py
verity_utils.py
This separates logging outputs from normal outputs, and allows easier
switching between different verbosity levels. It also supports adjusting
logging config via environment variable (LOGGING_CONFIG).
Test: `m dist`
Test: `python -m unittest discover build/make/tools/releasetools`
Change-Id: Idfc3f7aff83e03f41f3c9b5067d64fd595d5192d
This caught a few bugs/syntax errors (a few character classes were not
escaped properly in regex patterns, some indentation was illegal,
etc).
Change-Id: I50637607524e68c4fb9cad7167f58a46b8d26b2c