Hotfix for dorfl's Shortwave mod in Factorio 1.1--now in 2.0!

Note that in 2.0, the channel selection only reads the first slot (upper left). The other slots are ignored.

Also fixes some potential compatibility issues with Space Exploration and Creative Mod, and better pipette behavior using the helper function in Robot256Lib. Feel free to use these changes when the main mod updates!

Connect or separate circuit networks via shortwave radio channels.
UPS-friendly and real-time activity -- no on-tick Lua required.
Usage
Build and place a shortwave radio pack.
Set the radio channel using the large dial knob (selection box on lower-right). Channels take the signal count into account, so IronPlate(2) is different to IronPlate(17).
Connect the radio to a local circuit network (selection box on upper-left). Local signals will be transmitted to other radios tuned to the same channel, and vice-versa.

In case that wasn't clear, here's another helpful description:
What the player actually has to do is:
Click on the round knob/dial part of the placed radio to open the selection window.
On this window you use the logistics interface to select an arbitrary item and a quantity for it.
That item/number combination is a unique channel that can be picked up by all other radios if they are set to the exact same thing.