Usable Logger and Time/Data classes

Labs list:

1. Creation of both Logger and Time classes with their basic methods
2. Creation of inherited classes (ConsoleLogger and FileLogger inherited by Logger interface, Data inherited by Time)
3. Added some basic exception cases and exception handlers
4. Added some binary and unary operators overloading for all classes
5. Added support of IOS << and >> operators (write/read from stream, write/read from normal/binary file)
6. Added support of ConsoleLogger and FileLogger template classes creation (idea: Control object modifications through logger)
7. Creation of Builder and Iterator patterns for Data/Time and Logger classes respectively. Also bringing the code base to the principles of SOLID.

(с) radon