small bug fixes

Projekte/monopoly/model/src/main/java/pp/monopoly/model/fields/BoardManager.java

@@ -22,7 +22,7 @@ public class BoardManager {
      * Creates a Monopoly GameBoard
      * @return the List of Fields in correct  Order
      */
-    private List<Field> createBoard() {
+    public static List<Field> createBoard() {
         ArrayList<Field> fields = new ArrayList<>();
 
         fields.add(new GoField());

Projekte/monopoly/model/src/main/java/pp/monopoly/model/fields/GulagField.java

@@ -15,4 +15,8 @@ public class GulagField extends Field{
         player.visit(this);
     }
 
+    public int getBailCost() {
+        return bailCost;
+    }
+
 }

Projekte/monopoly/model/src/main/java/pp/monopoly/model/fields/TestStreckeField.java

@@ -19,6 +19,8 @@ public class TestStreckeField extends Field{
     }
 
     public int collectMoney() {
-        return money = 0;
+        int tmp = money;
+        money = 0;
+        return tmp;
     }
 }