Verifies that a mapping dictionary has the required schema and logical constraints:
columns INDEX, old, new, X_var, Y_var, ID_var,
Time_var, duplicate_of, and duplicate_action.
Verifies that a mapping dictionary has the required schema and logical constraints:
columns INDEX, old, new, X_var, Y_var, ID_var,
Time_var, duplicate_of, and duplicate_action.