Main

- NeoGeo: generate save per CD.

- NeoGeo: select CD by folder if only one cue/chd is present.

- NeoGeo: fix for Double Dragon CD.

- NeoGeo: supports specific tweaks for Metal Slug 5 Plus, V-Liner, Jockey GP, KOF98 AE/UM.

- NeoGeo: some other tweaks and improvements.

- OSD Locking option (Martin Donlon, me).

- Saturn: fix CD audio buffer reset (srg320).