refactoring to comply with c# conventions

RhythmBullet/Utilities/ParticleSystem/Particle.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RhythmBullet.Utilities.ParticleSystem
+{
+    class Particle
+    {
+    }
+}