Add exe icon to msvc build

[olanti-p]

Summary

SUMMARY: Bugfixes "Added executable icon to msvc build"

Purpose of change

Fix #1717

Describe the solution

Mingw build includes a resource file that describes the ico to use for the executable. Add this file to msvc build as well.

Testing

Compiled the game in Visual Studio and with Github Actions, launched the game on Windows, saw that exe has the icon. https://github.com/olanti-p/Cataclysm-BN/releases/tag/cbn-experimental-2022-08-10-2041