Implement basic version of simprepTemporal with smoke tests
RF Move verification into own code, add effect_size to stim_timeseries
BF Copy onset/duration/effect lists

Avoids unexpected side-effects causing problems
Add ability to skip param verification

Speeds things up when we know it's already been done in an earlier step
Improve coverage and make Pylint happy
Implement initial version of simTSfmri with smoke tests