[Planned] Research module

Module to read which lab level is required for the current research. No current research would output -1, hence it doubles as detection for if there is an active research going on.

A second output can show combined research modifier for edicts, offices and population (read when mouse over the research point icon in labs)

Add space research inventory and space research required bit to the output pins

I do not know how to handle now the space stations, they are unreachable by antena, but would make sense to automatize them, in case you want less start ramps.