SCI: Re-enable the entry for LSL1 remake

The entry is valid, verified by waltervn
SCI: Add another version of LockerGnome Quest Redux
SCI: Add comments for the MT-32/GM patch contents
SCI: Fix bug #6725 - "SCI: LSL5 Mac doesn't launch with MT-32 music"

Thanks to waltervn for his help
SCI: Set the NS rect for all cases in GK1 (bug #6729)