Virtual Pet App
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Synopsis:
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Meet Drago the Dragon. Drago is a virtual pet. You may feed him, play with him, give him water and he sometimes needs 
rest. Once Drago's needs reach 50 he will start to need more attention. Drago has a mind of his own sometimes so he may 
feed himself, drink, entertain himself, or take a nap. Lastly, be careful when any of Drago's needs get close to 100. 
If you wait too long to address them he can tragically pass away. There is a lot displayed on the console after time
advances so you may need to scroll up to see all the details.

Instance variables
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int hunger
int thirst
int boredom
int tiredness
boolean death
	
Methods
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feed () -  will decrease hunger and increase thirst
getHunger() - returns the hunger value
boolean isHungry() - boolean that returns true if the pet is hungry 
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water() -  will decrease thirst and increase tiredness
isThirsty() - boolean that returns true if the pet is thirsty 
getThirst ()- returns the thirst value
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play() - will decrease boredom and increase hunger, thirst, and tiredness
isBored () - boolean that returns true if the pet is bored 
getPlayfulness()- returns the value for boredom
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nap() - will decrease tiredness and increase hunger
isTired() - boolean that returns true if the pet is bored 
getTiredness() - returns the value for tiredness
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tick () - simulates an advance in time. It uses a random number to increase hunger, thirst, boredom, and tiredness.