better mod pack support

[flower]

hello,

i'd love to see a way to organize mods and savegames/servers better.

(for me) the best would be if all mods would be downloaded from the server (if not already there)
this doesnt work well with savegames though.

atm i have a bunch of scripts which copy the required mods for a specific server


btw thank you for factorio.. i already placed it around 800hrs and still love it. i am really impressed that you are still improving it.