Tiny update today, mainly to fix a crash!

• Fixed a crash caused the Mushroom Towers being hit by friendly fire.
• Fixed an issue where switching out a specific Orb mid-attack left behind a damage area briefly.
• Added a Yellow Dot to the Map in a specific room.
• Added color fade oscillation for Map Markers in the Map Screen (helps with Markers covering map)
• Optimized Conveyor Belt objects to be more efficient (improves frame-rate on some processors)
• Lowered experience gained from a specific enemy.