Set requests for space platform hub via circuit signals

[MrSpreadsheet]

TL;DR

Allow setting space platform hub requests via circuit signals (and allow getting them from the planet) so you can set up dynamic resupply space platforms.

Why?

I want to keep Fulgura regularly resupplied to a certain amount with Green Circuits from Nauvis. I create a Nauvis-Fulgora space platform that goes back and forth shipping resources one way, and science back. I calculate the number of Green Circuits I need on Fulgora but cannot use that signal to set Space Platform Hub requests. With this and either Radars on space platforms should link signals to the planet under them or Radars should be able to link circuit signals between planets you could use circuit signals to set requests on the Space Platform Hub based on resources required on a given planet and load rockets more optimally.