Post jam update - difficulty settings and more!

Post Jam Update:

• Increased volume of wind and water loops.
• Grey borders for scaled windows for all scenes.
• Pause and resume audio now play as intended.
• DIFFICULTY MODES! Now you can play the game in easy and normal modes.  The original difficulty is retained in hard mode.
• A lil' seed drops into the soil at the start of the run.
• Clouds now appear in front of the sun at all times - fixed layering issue.
• Total win tracker - counts the number of total successful runs at any difficulty.
• Easter egg: Winning the game after the first time will result in something groovy! 😎