Custom cable types (eg. blue wire) or add to vanilla

[aubergine18]

For a mod I'm making (and also several others I plan on making) I could sorely use a third wire color and maybe a fourth.

If possible, could we get moddable wires - I can add the item, but I can't specify it as a wire (would also need to define the color).

If not, could blue and yellow wires be added to the base game? Disabled by default, and not enabled by any vanilla tech. They would just sit there hidden until a mod has use for them at which point the mod adds a tech, relevant poles, etc.

In either case, would need ability to define the connections in entities, etc.