Realizes the input LF relative to the targets,
returning the best edge found (or null if none)
in the given time limit (in ms), potentially waiting
longer for a complete edge according to the given flag.
Realizes the input LF relative to the targets,
with the given edge weighting option,
returning the best edge found (or null if none)
in the given time limit (in ms), potentially waiting
longer for a complete edge according to the given flag.