DoubleValuesSource#fromScorer() should leverage ScoreCachingWrappingScorer

DoubleValuesSource#fromScorer() is a helper method for wrapping a Scorable in a DoubleValues instance (providing the value of Scorable#score() as its value). It would be nice to leverage ScoreCachingWrappingScorer for this use-case to avoid unnecessarily recomputing the score if the Scorable is being used elsewhere.