Add TaskStatus enum and integrate status field into Task model

src/main/java/dev/coph/flightscore/backend/task/Task.java

@@ -9,5 +9,6 @@ import java.time.Instant;
 @Accessors(fluent = true)
 public class Task {
     private int taskNumber;
+    private TaskStatus status;
     private Instant scoringPeriodeEnd;
 }

src/main/java/dev/coph/flightscore/backend/task/TaskStatus.java

@@ -0,0 +1,9 @@
+package dev.coph.flightscore.backend.task;
+
+public enum TaskStatus {
+
+    LIVE,
+    CANCELED
+    
+
+}