Selects single card in SingleShotFidelity
Selects single card in SingleShotFidelity

see last commit.
I kept the option open in case we will do simultaneous pulse
calibrations and readout in the future.
--DR

BBN-Q/Qlab,BBN-Q/Qlab,Plourde-Research-Lab/Qlab,BBN-Q/Qlab,Plourde-Research-Lab/Qlab,BBN-Q/Qlab,Plourde-Research-Lab/Qlab