unpack zip file and delete zip file

[joshgay]

This replaces the zip file with the contents of the zip file.

We further recommend creating a tag annotated with the header information in the file eval_COMPOSER.py

Specifically the following text:

Code accompanying the manuscript 'COMPOSER - Development and Validation of a G eneralizable Model for Early Prediction of Sepsis'

Copyright 2021 
Supreeth P. Shashikumar <spshashikumar@health.ucsd.edu>
Shamim Nemati <snemati@health.ucsd.edu>

Revision: 1.1 Date: 08/03/2021