moved main.cpp to sources\main
added README.md
added base class PizzaBase
added "Using C++11"
made simple demonstration
made all methods virtual
added class Cheese
added demonstration of work of decorator for pizza with cheese
added class Tomato
added demonstration of pizza with cheese and_tomato
added class Chicke based on example of Cheese
added demonstation of that pizza now can be with cheese and chicken and with double cheese, tomato and chicken