Add dotnet452

If you only have this through Epic and not Steam, the native Linux versions isn't available. The Windows version will NOT run through Proton. You can use Heroic Launcher to install the non-proton version of WINE GE and add WINEARCH=win32 in the environment variables under "Other options" before running it to create a 32 bit wine prefix, then use WINETRICKS to install dotnet452. Without these steps it crashes before even getting to the title screen. After doing this, it seems to run fine.