Support to run from directory (i.e. for forge/fabric mod compatibility)

[Gerlesh]

When trying to join a fabric server (specifically one running Origins mod), the bot fails to login with this message:

[2021-07-12 22:01:36] [SEVERE ] Login failed: {"text":"This server requires you to install the Origins mod (v0.7.0) to play."} 

It would be very useful to allow the bot to run from a directory or with an installation to allow it to join servers like this.

[MrKinau]

This is almost the same as requested in #38 as I do not think it will get implemented soon and don't know if it is even possible I would recommend you to just use an auto fishing client mod.