Realistic Cruelty

1. Improve particle visual effect

2. Improve network

3. Add client-only gore effect (enable in config)

4. Fix mistaken particle speed

Improved particle texture

1. Fix particle speed mistake
2. Add more config options
3. Improve particle animation, use inverse proportional function
4. New small blood particles with animation

1. Improved animation
2. Optimize code and network
3. Improved the accuracy of blood splat position