So, I added a butterworth bandpass filter, butterworth_bandpass.py
is a python script, butterowrth_test.py is in class format.
fft_test.py is taken prettty much directly from Chip Audettes Python_GUI
from the OpenBCI github as well as his bp_Filter_coeff.mat
I haven't looked at his filter coefficients yet in comparison to mine,
but I plan to in the next couple days.