new Rigol generator for CMOT; rename *_load -> *_cool; add some more tweezer ramping for e.g. release-recapture measurements

dirty update -- update shim coil values, add probe cooling, remove CMOT fields for non-CMOT operations, add tweezer depth modulation stuff

add in-sequence control of shims during probing;

add analog/digital control of TimeBase for tweezer AOD;

add dryrun function to check sequence construction and parameter variation;

tweak parameters and remove MOGLabs stuff for TimeBase; add pre-imaging block and some small waiting times

make timeline vertical; add dark time for andow shutter closing; relabel a few parameters for clarity; add book-keeping for varied parameters

move blue MOT loading sequence to stable;
merge camera computer changes to lib/imaging.py

add negative shim coil value handling, tau_dark period for tweaked loading and imaging, and adjustments to various parameters

fix timing discrepancy with old sequence; fix some error reporting; add commandline args to visualize command