Interceptor Demo update 2022-08-27

Update 2022-08-27:

• Added new tile for the energy bomb ready indicator on the HUD.
• Added new bomb indicator icon as well as a charging bar for the next shot when not available.
• Added explosion sprites to enemies when they are destroyed.
• Explosion sound effect added to replace old one which would rarely play when called.
• Tweak to color palette used by bullets when in High Visibility mode on Color. No more white on a white background.
• Fixed a bug where the bomb indicator didn't work until after a bomb was fired the first time.