Patch 0.8.0.0a Demo

[h3]Balancing:[/h3]

• Decreased enemy spawn interval to make early game more interesting and challenging
  
• Decreased the wave duration slightly for endgame waves
  
• Increased low tier enemy spawns on waves 9-15 to keep enemy densety consistent
  

[h3]Improvements:[/h3]

• Increased clock sfx volume
  
• Increased collect sfx volume