Small performance optimizations -> LinkedList instead of ArrayList on lists...

Small performance optimizations -> LinkedList instead of ArrayList on lists with high frequencies of add/remove

dmn-verifier-app/src/main/java/de/unikoblenz/fgbks/dmn/core/models/VerifierResult.java

@@ -2,7 +2,6 @@ package de.unikoblenz.fgbks.dmn.core.models;
 
 import de.unikoblenz.fgbks.base.builder.DefaultBuilder;
 import java.io.Serializable;
-import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.List;