1. Removed an unused parameter in ProcessTile function call.
2 Added a warning to the tool tip of 8x16 sprite option about when it should be used.
3. Added an option to output BG tiles only or Sprite tiles only.
Added option in HD pack builder to save screen information when tiles are first shown. User can look up which screen the tiles are added in the tileIndex.csv and open the screen_XXX.csv and screen_XXX.png to see the actual usage of the tiles.
Added playback option and volume option to <bgm> tag. Use 1 for looping playback, 0 for single playback, -1 for no change. Use 0 to 128 for volume control and -1 for no volume change.
