Ability to have separate research "groups"

[Chumfactor]

Esp now that space age is here, it would be nice to be able to assign Research Labs to groups, and follow different paths of the tech-tree in each group.

* By default, labs would be in "Main Research Path"
* By UI, similar to request-groups, I could assign labs to another group.
* The other groups could queue-up and research areas other than the main technologies.

For example: currently, my only options are to (a) bring Metallurgical Science to my main research lab via rockets/platform or (b) bring all the other Science Packs to Fulgora and research there.

My idea is to allow main "Plain Vanilla" research on Nauvus to continue, while I build entirely new science-factories on Fulgora and research Fulgora-specific science there.

Obviously, when we get into multi-planetary science, I'll be doing research-in-space, but that's a ways off, yet (for me, at least!)