…n to strange everything through the import queue

1.  Introducing a robust ImportQueueItem to track an import and follow it through the system
2.  Refactored code to extract behaviors out of GameImporter so it's not a god class
3.  Pre compute as much as possible for an ImportQueueItem, such as which systems are valid.
4.  Try to simplify the general logic to 3 steps - compute, move, and import into the DB

Remaining work

1.  Tons of code clean up
2.  Proper handling of conflicts
3.  Proper handling of CDROMs (need to sort to handle M3U -> Cue -> Bin)
4.  Proper handling of directories
5.  Unit tests where applicable
6.  Ensure validity of imports that flow through this new system.
7.  UI for Conflict handling
8.  Validate that archives work properly.
9.  Validate and fix Artwork

…portQueueItem can now contain Children. We also now check the queue (and any child items in the queue) for duplicates. next step is to pre-process the queue to fix up or detect CDRoms properly.

…lated files, if they're in the queue. this will make it easy to move files to the right place all at once later in the process

…for being able to test a basic import through the system

additional code and warning clean up

…er. ideally that's a utility that need not live here

…GameImporter interfaces

…t be sure of the right system.

conflicts are now properly detected and moved to the conflicts folder, and shown in UI
if a conflict is detected, user can tap to enter SystemSelectionView which offers up valid systems
tapping an item will update that ImportItem's targetSystem so hopefully import works after that.

… import to.

fix case where looking up in openvgb finds a match - we handle this correctly now.

adds in a crucial preProcessQueue step to ensure the queue handles cue/bin files correctly
remove extraneous view model in ImportStatusView
Fixes some bad cases for CDROMs where child items weren't copied to the correct folder
Added some more logging in GameImporter

… tests too)

…stem when identified, and "BIOS" for bios (since that was crashing for some reason)

…mport files options

…dition to the queue. seems to work?