Added a files for the CMake build system

I've created a CMakeLists.txt, so one can now potentially build Kroniax on any CMake-supported platform for ever CMake-supported compiler.

I've tested the file for Windows MinGW 4.7.2 (x86), Windows Visual Studio 2012 (x64) and Debian GCC 4.7.2 (x64) and it worked perfectly fine.