Gecko/AR Batch Approval

Adding a community-requested list of Gecko and Action Replay codes to the allowlist. Many of these codes were from the wiki and are being added to Dolphin's repo for the first time.

Data/Sys/GameSettings/GPVP01.ini

@@ -0,0 +1,18 @@
+# GPVP01 - PIKMIN 2
+
+[OnFrame]
+# Add memory patches to be applied every frame here.
+
+[ActionReplay]
+# Add action replay cheats here.
+
+[Gecko]
+$16:9 Widescreen
+04004F30 3C003FE3
+04004F34 60008E39
+04004F38 9004002C
+04004F3C 484208B8
+044257F0 4BBDF740
+
+[Gecko_RetroAchievements_Verified]
+$16:9 Widescreen