Initial C side implementation of a spectrum analyzer...  Still need to solve
a few problems, but it was succesfully tested to generate a spectrum...
Mostly implemented the spectrum analyzer, committing now before I have to
make changes to the rest of the plugins to accomodate the new standard.
Fully implemented and compile-able (but not yet tested) spectrum analyzer.
Fix uninitialized memory use.
Fix incorrect class __init__ args
A sort-of-working spectrum analyzer, that doesn't really use any noticeable
amount of CPU...
Flip the spectrum right-side-up...
Much better working spectrum analyzer...
Almost completely working spectrum analyzer, one more bug fix and it can
be merged.
Fix the spectrum analyzer not getting re-enabled when the UI is show a 2nd
time...