Change check for logical histogram bins to throw an error if the user enters bins for a logical variable

[MeganFantes]

The user should not enter a list of bins for a logical variable, the statistic will determine the bins for them based on the value of "impute". Change the "logical" condition in errorCheckBinVariableType to throw an error if there are any bins, the error should say: "Do not enter bins for a logical variable".

[MeganFantes]

Instead, changed determineBins() flow to check if the variable is logical before checking if bins have been entered. If the variable type is logical, then the bins will be set correctly by the statistic regardless of if the user entered bins or not (the user's bins will be ignored if they were entered)