#3 Project architecture refactoring

[igromanru]

Hey, it took a while and honestly it's not 100% done, but I'm now busy with other projects and don't really motivated to continue atm. This is my latest stable state. I've separated mostly anything in UI and Logic part and made changes to fit the C# coding conventions. I hope you got some time to review my changes. The easiest way to do it, is to clone my fork and look over the whole project. I've tested all features ingame, except Editors->Wepoans anything is working for me. But it looks like that Weapons is already broken in the latest release version (1.3.2.0). Since it wasn't a part of the issue #3, I have left it for later.