Fixed baby zombie hitbox size (#765)

* Added scaling to zombie

i added scaling to zombie based on if its a baby or not

just setting the size does not work you have to set it in the tick (look at the tick for slimes which is a scalable monster)

* add output dir to gitignore

the build output folder is now added to the git ignore

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Co-authored-by: Loki <lokirautio@gmail.com>

Minecraft.World/Zombie.h

@@ -60,6 +60,7 @@ public:
 	virtual bool hurt(DamageSource *source, float dmg);
 	virtual void tick();
 	virtual bool doHurtTarget(shared_ptr<Entity> target);
+	virtual void updateSize(bool isBaby);
 
 protected:
 	virtual int getAmbientSound();