Various confTool improvements
After @mleszczy's integration of pickle files comparison into confTool
I now want to integrate some of my own local changes of the script:
- sort the components and properties alphabetically
- merge loaded dictionaries from pickle objects - no need to process separately
- some more safeguards for property parsing
- print properties only existing in ref/chk
- fix array comparison -- always compare items even on same size, separate diff needed for each direction, also print index of mismatched value
- add IOVDb folder parsing -- this is kind of hack, but as configuration changed and might not be consistently defined some trivial parsing might be useful
/cc @wlampl @emoyse @tbold (and for sim/digi @jchapman @rtombs @bleban)