Jeck - [JGE recompile needed] Shop cleanup, Interface enhancements.

Added basic transition system that works with GameApp's phases. Currently does a fade-out between elements, which works well in some places and not-so-well in others. We'll definitely want to think about where and where not to use it... they'd work a lot better if we could spawn a thread to handle loading the next state while transitioning.

Also cleaned up the shop a bit, so it uses ReadButton() instead of GetButtonClick()-- hence the slight change to JGE. Added a tiled image for the task board, which loads conservatively (I tried 128x128, but it didn't look as good).

projects/mtg/src/GameStateOptions.cpp

@@ -218,7 +218,7 @@ void GameStateOptions::ButtonPressed(int controllerId, int controlId)
     JSoundSystem::GetInstance()->SetSfxVolume(options[Options::SFXVOLUME].number);
     JSoundSystem::GetInstance()->SetMusicVolume(options[Options::MUSICVOLUME].number);
   case 2:
-    mParent->SetNextState(GAME_STATE_MENU);
+    mParent->DoTransition(TRANSITION_FADE,GAME_STATE_MENU);
     break;
   case 3:
     mState = SHOW_OPTIONS;