Split the C++ project into a DLL and a console application

[bouwkast]

Currently the entire project is just a console application, splitting it into two projects - a class library and a console application - will allow for a better separation of concerns. This should also assist in adding in future features such as #5 and #4. Additionally, if I wanted to port it somewhere else and have something such as a C# project reference it, that will be much more feasible with having a DLL.