bpm_experiment.py: differentiate when BPM amplitude signals are centered in IF (e.g. ADC datapath) or baseband (e.g. turn-by-turn, FOFB)
correct fixed value of FOFB decimation rate to 1112
change parameter name from data_rate_decim_factor to data_rate_decimation_ratio
do not set BPM Kx and Ky anymore
include sleep after sending RFFE commands to prevent RFFE refusing successive connection requests with small time interval
automatically fill data_file_structure and data_file_format parameters of metadata
run_single.py: separate generated files of different datapaths into folders
run_sweep.py: separate generated files of different datapaths and different configurations of RFFE switching into folders
*.metadata: include new metadata template files