Factorio: Remove the need to have two separate installs

[silasary]

I needed this to play nice with OSX's gatekeeper, because standalone mode doesn't work when the entire app gets checksummed.

What is this fixing or adding?

This allows the user to point AP at their regular Factorio binary, and instead sets the write-path with command line args.

This has a few benefits:

• Easier to set up
• Easier to keep Client/Server version in sync (They can be the same binary now)
• Works on OSX with Gatekeeper enabled

I also added a check for when someone points the executable path at the .app bundle, rather than the correct value of /Applications/factorio.app/Contents/MacOS/factorio

How was this tested?

• Tested on OSX 14.5 on Apple Silicon with executable set to /Applications/factorio.app
• Tested on Windows 11 with the executable set to C:\Program Files\Factorio\bin\x64\factorio.exe
• Tested on Windows 11 with the executable set to factorio\bin\x64\factorio.exe

Note: When on Windows, with an existing standalone install in factorio\bin\x64\factorio.exe, you cannot also run the Standalone from the same directory. This is intentional, as I picked that configuration's default write directory as the one AP uses.

If this makes graphical changes, please attach screenshots.

[Alchav]

The client was unable to create a new game while I had Factorio running. Seems the initial command to run Factorio to create the save file fails if the game is running. If I open the client for the first time without the game running, then it works and then I can open them in any order and they work as advertised. I'm running Ubuntu.

[silasary]

Fixed :)