Updates progress.py to use the git module for outputting commit hash

requirements.txt

@@ -4,3 +4,4 @@ colorama>=0.4.3
 ansiwrap>=0.8.4
 attrs>=18.2.0
 watchdog>=0.10.2
+GitPython>=3.1.14

tools/progress.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-import os, struct, sys, ast, argparse, json, re, csv
+import os, argparse, json, re, csv, git
 
 parser = argparse.ArgumentParser()