A new UI command that takes a list of options with an optional receiver
name.
Starting a namespace with useful common utitlities.  This one provides a
way to easily compare two strings while ignoring the case.
Also includes a function to determine a boolean for a string.
Implemented a messenger class for the Sensitive Detectors to pass
options to the sensitive detectors.

The default now is that ComptonG4Crystal should not store the full
energy deposited hits. It can be turned on with the option

/Compton/detector/setoptions <volname> store_edep_hits=yes