The great particle refactoring part 2: Splitting and Streamlining!

- Splits all particle textures into individual files intead of sprite sheets
- Replaces arc and lightning pulse entities with particles
- Pulls particle code up to the general ParticleWizardry so behaviours such as spin can be applied to all particle types
- Renames a few ParticleBuilder methods for conciseness.
- Adds a few new particle effects to various spells and entities, with a slight tweak to EntityMagicArrow#onBlockHit to facilitate impact effects

src/main/java/electroblob/wizardry/entity/construct/EntityDecay.java

@@ -53,7 +53,7 @@ public class EntityDecay extends EntityMagicConstruct {
 			
 			ParticleBuilder.create(Type.DARK_MAGIC)
 			.pos(this.posX + radius * Math.cos(angle), this.posY, this.posZ + radius * Math.sin(angle))
-			.colour(brightness, 0, brightness + 0.1f)
+			.clr(brightness, 0, brightness + 0.1f)
 			.spawn(world);
 		}
 	}