Allow us to start games on linux using hydra and lutris.

[gylli251]

Allow us to start games on linux using hydra and lutris.

So far just works, if somebody else can test it with me it would be great.

it uses the lutris runtime thats default to run the executable. sadly it needs to make the .exe execute permissions but don't see a way around that.

also changed the way the select and executable its not windows only.

Note that maybe its better to do the detection of what OS is running some way else then using "which lutris"

[gylli251]

Done. not sure about the merge conflicts can you take a look @hydralauncher ?

[hydralauncher]

@gylli251 could you resolve them?