Stopped U-turn switching if the battle is over, ensured animation spritesheet file extensions are removed from animation data, added Debug function to reload system cache, Pokémon debug menu now shows the Pokémon's status problem, changed mkxp.json to fix uncommon rendering problems

Data/Scripts/020_Debug/003_Debug menus/002_Debug_MenuCommands.rb

@@ -1153,3 +1153,14 @@ DebugMenuCommands.register("invalidtiles", {
     pbDebugFixInvalidTiles
   }
 })
+
+DebugMenuCommands.register("reloadsystemcache", {
+  "parent"      => "othermenu",
+  "name"        => _INTL("Reload System Cache"),
+  "description" => _INTL("Refreshes the system's file cache. Use if you change a file while playing."),
+  "always_show" => true,
+  "effect"      => proc {
+    System.reload_cache
+    pbMessage(_INTL("Done."))
+  }
+})