Allow configuring the config/consoles/emulators.txt locations via IceEngine parameters
Allow configuring the config/consoles/emulators.txt locations via IceEngine parameters

Summary: This will allow me to eventually pass them in via the command line.

Test Plan: Make a copy of config.txt and change the backups directory location. Change CommandLineRunner to use that new path and run Ice. Confirm that backups are made in the new location.

scottrice/Ice