Items Don't Despawn (#488)

* Indefinite Item Drops

* Preserve Disappear Effect when Disabled

* Changed to "Items Don't Despawn". Under "Cheats"

* SetItemTooltip for description

src/dusk/settings.cpp

@@ -75,6 +75,7 @@ UserSettings g_userSettings = {
         .infiniteOil{"game.infiniteOil", false},
         .infiniteOxygen{"game.infiniteOxygen", false},
         .infiniteRupees{"game.infiniteRupees", false},
+        .enableIndefiniteItemDrops {"game.enableIndefiniteItemDrops", false},
         .moonJump{"game.moonJump", false},
         .superClawshot{"game.superClawshot", false},
         .alwaysGreatspin{"game.alwaysGreatspin", false},
@@ -160,6 +161,7 @@ void registerSettings() {
     Register(g_userSettings.game.infiniteOil);
     Register(g_userSettings.game.infiniteOxygen);
     Register(g_userSettings.game.infiniteRupees);
+    Register(g_userSettings.game.enableIndefiniteItemDrops);
     Register(g_userSettings.game.moonJump);
     Register(g_userSettings.game.superClawshot);
     Register(g_userSettings.game.alwaysGreatspin);