Update 0.0.2!

We switched over from HDRP to URP! 
Now the project is fully playable in browser and graphics have been adapted to work on WebGL. Now here is the rest of the change log:

• AI Basic behavior has been greatly, now also targets their respective tower
• Added damage to the bullet 
• Bullets now destroy themselves upon collision
• Added a basic template for the Hell map 
• Simplified the map and used it also for the Heaven portion