initial commit

backend/src/main/java/com/nttdata/calender/changes/ChangeItem.java

@@ -32,6 +32,7 @@ public class ChangeItem {
     private Date D2;
     private Date D3;
     private Date D4;
+    private double planTime;
     // private boolean flagPermit;
     // private boolean flagApprove;
     // private boolean flagReject;