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/SJXP41.ini

@@ -0,0 +1,20 @@
+# SJXP41 - Just Dance 4
+[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 = 5
+EmulationIssues = 
+[OnLoad]
+# Add memory patches to be loaded once on boot here.
+[OnFrame]
+[ActionReplay]
+[Video]
+ProjectionHack = 0
+PH_SZNear = 0
+PH_SZFar = 0
+PH_ExtraParam = 0
+PH_ZNear = 
+PH_ZFar = 
+[Video_Enhancements]
+MaxAnisotropy = 0