Add entity flag to show logsitics network

[Optera]

To show roboport coverage when placing an item, currently there's only a hack of using logistics-container and swap that in on_created with the real entity.
Since chest don't support rotation we can't rotate these hacked entities before placing them.

As Rseding suggested on discord please add a flag so any entity can show logistic cell coverage on mouse over and when placing it.

But there are plenty of flags left on entity prototype so one could be added that makes mousing over a given entity show the logistic area like logsitic containers do.
If someone would put it in modding interface requests.

[Optera]

Implemented in 0.18.25.

Added item prototype flag "draw-logistic-overlay".

Thank you.