public float getNormalizedScore(int a, boolean useLibrary) throws LSHException {
		return getNormalizedScore(a, singleExeXref, useLibrary);
	}
Computes a score comparing two executables, normalized between 0.0 and 1.0,
indicating the percentage of functional similarity between the two.
1.0 means "identical" 0.0 means completely "dissimilar"
@param a is the index of the first executable
@param b is the index of the second executable
@param useLibrary is true if the score measures percent "containment"
         of the smaller executable in the larger.
@return the normalized score
@throws LSHException if the self-scores for either executable are not available
Ghidra/Features/BSim/src/main/java/ghidra/features/bsim/query/client/ExecutableScorer.java