Added __main__.py file; updated binwalk script accordingly

This reverts commit 46f0efd3.

Add ARM64 Linux image signature

The Rijndael S-Box 

Improves speed of entropy scan

Add signature for bix firmware file format

moved entropy legend

Adding power support

Update deps.sh for Python 3 jefferson

This is used by Zyxel for the firmware in their GS1900 series switches,
but also shows up in Cisco 220 series.

It's really just the U-Boot header with a different initial magic value.

Also minor cleanup in the U-Boot signature.

Jefferson has moved to Python 3. This requires changes to `deps.sh`

Fixed bug in processing internal extractors; if extractor raises an exception, explicitly mark it as failed.

Improved speed of entropy scan by using a list rather than a dictionary for seen values
vastly improved speed with optional numpy/numba implementation

Add signature for Ubiquiti firmware additional data