Added filter_selector component

testing the interface to the hardware buttons...
Made LEDs Work
Simulation results Via test bench

Only includes Codec and S2p_adaptor
recorded sound at 600hz
More Sound recordings 10 second sweep
Unfiltered 10 second sweep signal
picture result of 10sec sweep filtered
added the 'unfiltered' image result
Changed Names of sound and image files

got unfiltered and filtered wrong way around
Updated LEDS toggleright way around
recommitted frequency response osciliscope plots.
recomiited phase osciliscope readings
Add new files to master