[Editor] Ability To Move Entities

[SupplyDepoo]

Add keyboard shortcuts, such as IJKL, to nudge the selected entity by one tile in a cardinal direction.

Unlike cloning or cut & paste, this will preserve circuit connections, etc if permitted. If the result would be invalid (such as wire distance too long), you get an error beep.

[slippycheeze]

One of the Picker mods does exactly this, and I love it so much. Especially because I can never remember the wire length, so I just place a pole real close, wire it up, then nudge it over to where I want it. I feel that demonstrates this is a reasonable feature to add, though it would be nicer to have a ... I guess a variant of cut and paste that wasn't so destructive? Same thing, more mouse driven.