Fix special counter access levels and subscriber names

- Fix special attack counter plugin access modifiers
- Fix special attack counter plugin subscriber method names

See also #3911

Signed-off-by: Tomas Slusny <slusnucky@gmail.com>

runelite-client/src/main/java/net/runelite/client/plugins/specialcounter/Boss.java

@@ -49,7 +49,7 @@ enum Boss
 	private final String name;
 	private final double modifier; // Some NPCs have a modifier to the experience a player receives.
 
-	public static Boss getBoss(String name)
+	static Boss getBoss(String name)
 	{
 		for (Boss boss : values())
 		{

runelite-client/src/main/java/net/runelite/client/plugins/specialcounter/SpecialCounter.java

@@ -27,19 +27,19 @@ package net.runelite.client.plugins.specialcounter;
 import java.awt.image.BufferedImage;
 import net.runelite.client.ui.overlay.infobox.Counter;
 
-public class SpecialCounter extends Counter
+class SpecialCounter extends Counter
 {
 	private int hitValue;
 	private SpecialWeapon weapon;
 
-	public SpecialCounter(BufferedImage image, SpecialCounterPlugin plugin, int hitValue, SpecialWeapon weapon)
+	SpecialCounter(BufferedImage image, SpecialCounterPlugin plugin, int hitValue, SpecialWeapon weapon)
 	{
 		super(image, plugin, null);
 		this.weapon = weapon;
 		this.hitValue = hitValue;
 	}
 
-	public void addHits(double hit)
+	void addHits(double hit)
 	{
 		this.hitValue += hit;
 	}

runelite-client/src/main/java/net/runelite/client/plugins/specialcounter/SpecialCounterPlugin.java

@@ -97,7 +97,7 @@ public class SpecialCounterPlugin extends Plugin
 	}
 
 	@Subscribe
-	public void onSpecialChanged(VarbitChanged event)
+	public void onVarbitChanged(VarbitChanged event)
 	{
 		int specialPercentage = client.getVar(VarPlayer.SPECIAL_ATTACK_PERCENT);
 
@@ -164,7 +164,7 @@ public class SpecialCounterPlugin extends Plugin
 	}
 
 	@Subscribe
-	public void onNpcDespawn(NpcDespawned npcDespawned)
+	public void onNpcDespawned(NpcDespawned npcDespawned)
 	{
 		NPC actor = npcDespawned.getNpc();