Further separate Process and Load code

+ Move chunk entry processing code into EntryChunk.ProcessAll
+ Rename NSF.ProcessChunks to NSF.ProcessAll
+ Make NSF.ProcessAll also call EntryChunk.ProcessAll
+ Move skip region into if block in NSF.ProcessAll
Add NSF.LoadAndProcess

+ Remove ProcessAll call from NSF.Load
Move EntryLoader-search code out of Configuration
Move Unprocessed code files into Base directories
Get GameVersion from arguments instead of Configuration
Further isolate use of Configuration.GameVersion
Remove global Configuration.GameVersion system

+ Ask user for game version for each opened NSF file
Add incomplete VABv6 (crash 1 wavebank) support
Add EID hint support to HexBox