Add script to create randomized files

.gitignore

@@ -0,0 +1 @@
+test_data/

create_test_file.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+head -c 10M /dev/urandom > test_data/$(cat /dev/urandom | LC_ALL=C tr -dc 'a-zA-Z0-9' | fold -w 20 | head -n 1
+).bin