add global launch options

[ericoporto]

Supposing a situation where you have AGS Editor in a wine prefix and you have agstoolbox installed on Linux.

It would probably be nice to launch it passing wine MYPREFIX=/home/bla/.prefix path/to/agseditor.exe.

I don't think we want to have individual per game/project settings (where would these be?).

But we could have a setting for what to run.
In Steam, this is done like this:

/usr/local/bin/somescript %command% /usr/local/bin/otherscript

And %command% will expand to whatever it is. This approach allows the command before to happen in the same line or the next. Now the problem here, is for agstoolbox there is no guarantee on which shell this runs.

But this is probably fine, as this is quite an advanced feature that I don't expect people to use. Before doing this, we probably want some tabs in the settings so this goes in an advanced tab or something.

• Here is the not so nice docs from Steam: https://help.steampowered.com/en/faqs/view/7D01-D2DD-D75E-2955

For the wine usecase, the workaround is probably to just run atbx.exe/agstoolbox.exe on wine itself.

About AGS Editor on macOS Wine, we are not quite there yet as AGS Editor is 32-bit and macOS Wine is 64-bit only, while wine has some sysWow64, it doesn't work perfectly yet.