Support Heroic Games Launcher/legendary

[JJTech0130]

I use the open source Heroic Games Launcher (which uses legendary under the hood) to launch my games from the Epic Games Store (including Subnautica).

I tried selecting the game directory manually, and using legendary launch Jaguar --offline --dry-run to get the launch parameters, but it gives me this error:

[JJTech0130]

The solution is to create a directory called .egstore in the game folder and add (any) 2 files to it, which tricks the detection logic.

[JJTech0130]

But perhaps some other solution could be found for autodetection lol