added bits for RZ6

RZ6 things needed for MJRosen rig,
gerbil branch created
updated
setup RZ6 output circuit

modified RX6_Binaural Output for use with RZ6, renamed, changed sampling
rate to 100KHz, weird issue with RPvD editor crashing when modifying
bitmask. ????
fixed mismatch in speakerstim_medusarec_16chan

HPSEarch doing something odd on run.  check synthesis portion of
HPSearch_Run.  also, see if there is issue with single channel recording
vs. 16 chan recording as setup for IO function
created single chan speakerstim
fixed some things in functions
debugging

modified RZ6 and RZ5 circuits for single processor (DSP) use
strange issue with DAQ input using ADC 1-4.  does not seem to be
correctly acquiring data
nothing major
fixes to circuit
Merge remote-tracking branch 'origin/gerbil'