Making InputContainer serializable

Author: sebastian-peter

src/main/java/edu/ie3/datamodel/models/input/container/InputContainer.java

@@ -6,10 +6,11 @@
 package edu.ie3.datamodel.models.input.container;
 
 import edu.ie3.datamodel.models.input.InputEntity;
+import java.io.Serializable;
 import java.util.List;
 
 /** Represents an aggregation of different entities */
-public interface InputContainer<T extends InputEntity> {
+public interface InputContainer<T extends InputEntity> extends Serializable {
 
   /** @return unmodifiable List of all entities */
   List<T> allEntitiesAsList();