Chromatrix Beta 1.06 Turret targeting and range improvements

Now, instead of constantly firing during waves, all turrets will wait until enemies enter their range of attack. Furthermore, turrets now prioritize which enemies to attack based on their range, ensuring that the closest enemies are targeted first. This greatly improves accuracy for most turrets.

- Fixed the firing for a specific turret

- Overall improvements to turret targeting via new range calculations

- Turrets now cease fire when enemies are out of range

- Small performance improvements to all firing scripts