Open directory as disc image
Display icon in UI
Add error message when opening entire ISO
Fix stupid mistake
Disable invalid file operations for virtual discs
Supprt opening whole disc, assume file info is gathered before it's used
-save state support
-abstracted file access
-moved to VirtualDiscFileSystem class
Linux fixes and small changes
Merge branch 'master' of https://github.com/hrydgard/ppsspp into DiscDirectory

Conflicts:
	Windows/ppsspp.rc
	Windows/resource.h
Merge pull request #2897 from Kingcom/DiscDirectory

Open directory as disc