Feature request : Add CLI options #126

Is your feature request related to a problem? Please describe.
This is kinda related to #52, but a little different. It's not possible to pass in CLI options in order to bypass the FTP-only server access limitation.

Describe the solution you'd like
two things:

1. Implement mc directory discovery
2. Allow passing in CLI options

Describe alternatives you've considered
Custom jar that runs this mod's jar. (tedious, but possible)

Additional context
I had to make a custom jar just so that I can run the mod jar in a different folder. I was lucky that the console that came with the host's interface allows user input, so I didn't have to automate user inputs too.

For anyone interested, here's the programs I've used (they're written by AI, so the code kinda sucks, but I've reviewed it and it's correct logic-wise and it gets the job done).