Various improvements to sounds

- Added several new sounds, mostly for ice spells
- Added automatic registering of sound events
- Finally fixed the frost ray and wall of frost sounds
- Removed a few unused sound files

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

@@ -91,6 +91,10 @@ public class EntityForcefield extends EntityMagicConstruct implements ICustomHit
 
 		super.onUpdate();
 
+		if(ticksExisted == 1 && world.isRemote){
+			Wizardry.proxy.playMovingSound(this, WizardrySounds.ENTITY_FORCEFIELD_AMBIENT, WizardrySounds.SPELLS, 0.5f, 1, true);
+		}
+
 		// New forcefield repulsion system:
 		// Searches for all entities near the forcefield and determines where they will be next tick.
 		// If they will be inside the forcefield next tick, sets their position and velocity such that they appear to

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

@@ -57,7 +57,7 @@ public class EntityIceSpike extends EntityMagicConstruct {
 					this.facing.getZOffset() * extensionSpeed);
 		}
 
-		if(lifetime - this.ticksExisted == 30) this.playSound(WizardrySounds.ENTITY_ICE_SPIKE_EXTEND, 1, 2);
+		if(lifetime - this.ticksExisted == 30) this.playSound(WizardrySounds.ENTITY_ICE_SPIKE_EXTEND, 1, 2.5f);
 
 		if(!this.world.isRemote){
 			for(Object entity : this.world.getEntitiesWithinAABBExcludingEntity(this, this.getEntityBoundingBox())){