addressing problem in EKG

it looks ike i dereferenced the passed parameter too far and made a new copy of
the ekg data struct. Fixed that and global data is updating correctly. Optfft
still does not work as desired, but will test. Could be simple error.
OPTFFT WORKS now. conversion to result still wonky

Still need to resolve final freqency result update. goes into faultISR for some
reason.
Current state files work.

conversion is not right.
code layout changes.

Debugging reveals that faultIDR occurs on cbAdd of frequency. fault occurs in
the first line of cbAdd() function. Perhaps an issue with initialization or
addressing?