Finished importing JTransforms FFT library

Finished importing the JTransforms FFT Library into the
main project. The microphone class has also been subjugated
to a minor cosmetic series of changes hopefully resulting
in a better object-oriented design. An android project
has also been created. The project was tested on an
Android device to see whether everything ran, and,
surprisingly, everything did.

Issue: 4
Addressing review

Addressing comments made in a review. File structure has
been modified and all unnecessary files have been removed.

Issue: 4
Review: 1
Merge pull request #9 from aidlance/fft

Fft, merging!