below the pole (the usual location for such a thing, but only if you're using a
digilines-enabled spawner). Sneak (usually "shift") still places concrete right
below the pole, so sneak + aux1 will place both.
As usual, if you're in survival mode, you must have distributors in your
inventory in order to place them, as with concrete and the pole and light
items; the mod will warn you if you have none.
registered pole nodes, with simple texture overlays to make it evident.
Also, create suitable spawners for these, but only if the light source
to be spawned is also digilines compatible.
When using a digiline-compat spawner, you can set the channel for the
light source (and thus all future lights you place) by shift-punching
while wielding the spawner. This setting persists until the next
restart, or until you change it with another shift-punch.
check if the user has concrete when they try to shift-place in survival
fix wrong pole check/deduct count
add informational messages for when the player is short on materials
uses tables to generate spawners based on available mods
instead having them hard-coded.
side-effect: this allows default mese lamps on all four
existing pole materials instead of only wood.
