Add player animation system!

- Hooks into ModelRenderer by wrapping it in an extended version that allows modification of angles after the model has set them
- Is compatible with pretty much everything, yay (even modded armour!)
- Adds property overrides to ItemWand so that gets animated too
- Adds a system for generating override models from a template at runtime so I don't have to duplicate all the wand models
- Tweaks particles and ray spells so they line up with the end of the newly-animated wand
- Fixes a long-standing bug where wand usage actions would stop immediately for all non-continuous spells

src/main/java/electroblob/wizardry/client/particle/ParticleTargeted.java

@@ -1,6 +1,7 @@
 package electroblob.wizardry.client.particle;
 
 import electroblob.wizardry.Wizardry;
+import net.minecraft.client.Minecraft;
 import net.minecraft.client.renderer.BufferBuilder;
 import net.minecraft.client.renderer.GlStateManager;
 import net.minecraft.client.renderer.Tessellator;
@@ -15,6 +16,8 @@ import javax.annotation.Nullable;
 /** Superclass for particles with a second target entity or target position. */
 public abstract class ParticleTargeted extends ParticleWizardry {
 
+	private static final double THIRD_PERSON_AXIAL_OFFSET = 1.2;
+
 	protected double targetX;
 	protected double targetY;
 	protected double targetZ;
@@ -79,6 +82,16 @@ public abstract class ParticleTargeted extends ParticleWizardry {
 		float y = (float)(this.prevPosY + (this.posY - this.prevPosY) * (double)partialTicks);
 		float z = (float)(this.prevPosZ + (this.posZ - this.prevPosZ) * (double)partialTicks);
 
+		// Translates the particle a short distance in front of the entity
+		if(this.entity != null && this.shouldApplyOriginOffset()){ // TODO: Replace with a protected boolean method
+			if(this.entity != viewer || Minecraft.getMinecraft().gameSettings.thirdPersonView != 0){
+				Vec3d look = entity.getLook(partialTicks).scale(THIRD_PERSON_AXIAL_OFFSET);
+				x += look.x;
+				y += look.y;
+				z += look.z;
+			}
+		}
+
 		if(this.target != null){
 
 			this.targetX = this.target.prevPosX + (this.target.posX - this.target.prevPosX) * partialTicks;
@@ -133,6 +146,12 @@ public abstract class ParticleTargeted extends ParticleWizardry {
 		GlStateManager.popMatrix();
 	}
 
+	/** Returns whether the origin of this particle should be moved a short distance in front of the entity it is
+	 * linked to, if any. */
+	protected boolean shouldApplyOriginOffset(){
+		return true;
+	}
+
 	/** Called from {@link ParticleTargeted#renderParticle(BufferBuilder, Entity, float, float, float, float, float, float)},
 	 * once the appropriate calculations and transformations have been applied, to actually render the particle. Subclasses
 	 * override this <i>instead</i> of overriding {@code renderParticle} directly, and inside render the particle <b>along

src/main/java/electroblob/wizardry/client/particle/ParticleVine.java

@@ -46,6 +46,11 @@ public class ParticleVine extends ParticleTargeted {
 		buffer.begin(GL11.GL_QUADS, DefaultVertexFormats.PARTICLE_POSITION_TEX_COLOR_LMAP);
 	}
 
+	@Override
+	protected boolean shouldApplyOriginOffset(){
+		return false;
+	}
+
 	@Override
 	protected void draw(Tessellator tessellator, double length, float partialTicks){