fix: wither and ender dragon custom names (#1472)

Minecraft.World/EnderDragon.h

@@ -183,7 +183,7 @@ public:
 	double getHeadPartYRotDiff(int partIndex, doubleArray bodyPos, doubleArray partPos);
 	Vec3 *getHeadLookVector(float a);
 
-	virtual wstring getAName() { return app.GetString(IDS_ENDERDRAGON); };
+	virtual wstring getAName() { if (hasCustomName()) return getCustomName(); return app.GetString(IDS_ENDERDRAGON); };
 	virtual float getHealth() { return LivingEntity::getHealth(); };
 	virtual float getMaxHealth() { return LivingEntity::getMaxHealth(); };
 };

Minecraft.World/WitherBoss.h

@@ -105,5 +105,5 @@ public:
 	// 4J Stu - These are required for the BossMob interface
 	virtual float getMaxHealth() { return Monster::getMaxHealth(); };
 	virtual float getHealth() { return Monster::getHealth(); };
-	virtual wstring getAName() { return app.GetString(IDS_WITHER); };
+	virtual wstring getAName() { if (hasCustomName()) return getCustomName(); return app.GetString(IDS_WITHER); };
 };