Fixes by DrWh0

All Dragon Disk Magazines -> Rebuilt from .lzh files except Dragon Disk 03 & 07
Dragon Disk 01 -> Fixed wrong memory initialization / Added patch in order to free extra memory
Dragon Disk 02 -> Fixed wrong memory initialization / Added patch in order to free extra memory
Dragon Disk 03 -> Replaced wrong sector data information
Dragon Disk 04 -> Replaced disk with a working copy
Dragon Disk 05 -> Replaced disk with a working copy
Dragon Disk 08 -> Fixed wrong memory initialization / Added patch in order to free extra memory / Fixed boot & some files
Dragon Disk 12 -> Fixed wrong column mode in Shuffle / Added patch in order to free extra memory also 
                  Replaced temporarily non existent "intro.pic" file in not "again.ldr" line 70 by "game.pic" twice