Added script file

Added a bash script to test creating various different degree sizes and cache sizes.
Run the script by typing:
./BTreeScript.sh
or for a cache
./BTreeScript.sh cache

Edit the script as needed to test different values and cache sizes, this should make mass testing easier. I didn't find any errors with the current script settings, but give it a go and check it out. You will end up with a shit ton of dat output files, however.