raise_built for LuaItemStack.build_blueprint

[justarandomgeek]

LuaItemStack.build_blueprint should have a flag raise_built to cause script_raised_built to be fired for each ghost

[Rseding91]

The game fires the standard build events for the player that did the building. So, there's no need for this in that case, but having it fire when by_player is not provided I guess would be fine.

[justarandomgeek]

Ah! ConMan doesn't set by_player because it doesn't know who (if anyone) caused the signals that triggered it, but I got a report from a user wanting events, presumably so that an instant-blueprinter can revive them. It seemed wrong to me to call the api and then just turn around and raise_event everything it gave me back!