weird issue initializing TDT hardware

sample rates are wacky on initialization.... ??????
troubleshooting issue with sample rate

for some reason, the output device sample rate was fucked up (set to
1e33);  reading a tag ('Enable') from the circuit seems to correct it.
bizarre.

need to test operation with calibrated output.  fix run mode where ABI
overrides LdB and RdB values .   test with medusa
testing, still having issues with tdt circuit.

need to fix SAM GUI display on pct mod and freq.
fixed limits on sAM stimulus freq slider
seems to be working.  tweaked some things

added monitor disable to hpsearch_run -> stop button method
troubleshooting on mjr rig
updated gitignore
cleaned up