Fixed reflection and some other stuff

[ronnnnnnnnn]

• Fixed projectile reflection (velocity prior to collision has to be used)
• Fixed the problem of some projectiles going through walls by setting collision detection of the projectile prefab to continuous
• Added layers for the player and projectiles to ignore collisions between them
• Changed the OutOfBoundsBox slightly so the projectiles collide with the walls instead of with them
• Projectiles now face the new direction upon collision and reflection