created an interface and corrected README.md again
added some decorators and changed the architecture
finished decorator, builded a separation with packages
started the Factory class and changed the ctors in package decorator
finished the factory class
added some tests and changed the name of the car template
code refactoring
added tests to test methods from decorators
some code refactoring
/Users/kevinschmidiger/bin/mygit
code refactoring