shared_ptr -> std::shared_ptr

This is one of the first commits in a plan to remove all `using namespace std;` lines in the entire codebase as it is considered anti-pattern today.

Minecraft.World/Ozelot.h

@@ -58,17 +58,17 @@ protected:
 	virtual int getDeathLoot();
 
 public:
-	virtual bool doHurtTarget(shared_ptr<Entity> target);
+	virtual bool doHurtTarget(std::shared_ptr<Entity> target);
 	virtual bool hurt(DamageSource *source, int dmg);
 
 protected:
 	virtual void dropDeathLoot(bool wasKilledByPlayer, int playerBonusLevel);
 
 public:
-	virtual bool interact(shared_ptr<Player> player);
-	virtual shared_ptr<AgableMob> getBreedOffspring(shared_ptr<AgableMob> target);
-	virtual bool isFood(shared_ptr<ItemInstance> itemInstance);
-	virtual bool canMate(shared_ptr<Animal> animal);
+	virtual bool interact(std::shared_ptr<Player> player);
+	virtual std::shared_ptr<AgableMob> getBreedOffspring(std::shared_ptr<AgableMob> target);
+	virtual bool isFood(std::shared_ptr<ItemInstance> itemInstance);
+	virtual bool canMate(std::shared_ptr<Animal> animal);
 	virtual int getCatType();
 	virtual void setCatType(int type);
 	virtual bool canSpawn();