Overlay local gameinis over global gameinis instead of copying.

Huge megacommit because a lot of things needed to be modified to make this
possible.

Data/Sys/GameSettings/GA3E51.ini

@@ -0,0 +1,19 @@
+# GA3E51 - All-Star Baseball 2003
+
+[Core]
+# Values set here will override the main dolphin settings.
+
+[EmuState]
+# The Emulation State. 1 is worst, 5 is best, 0 is not set.
+EmulationStateId = 4
+EmulationIssues = Black screen
+
+[OnLoad]
+# Add memory patches to be loaded once on boot here.
+
+[OnFrame]
+# Add memory patches to be applied every frame here.
+
+[ActionReplay]
+# Add action replay cheats here.
+