Sort is ascending if cntsperx is positive, descending if negative.
Improve error and report logs generated by genmotconf.tcl
It is not an error if a missing attributed can be initialised with a
default value by genmotconf.tcl.
Replace the COLLIMATOR_POSITIONS.csv with Bilby_motion_control_commissioning_checklist.csv
Generate new "generated_motor_configuration.tcl" file.