Configurable Spectate port to allow multiple concurrent Spectate servers

src/de/steamwar/sql/Event.java

@@ -87,6 +87,7 @@ public class Event {
     private final SchematicType schemType;
     @Field
     private final boolean publicSchemsOnly;
+    @Deprecated
     @Field
     private final boolean spectateSystem;
 

src/de/steamwar/sql/EventFight.java

@@ -84,8 +84,12 @@ public class EventFight implements Comparable<EventFight> {
     private final int teamRed;
     @Getter
     @Field
+    @Deprecated
     private final int kampfleiter;
     @Getter
+    @Field
+    private final int spectatePort;
+    @Getter
     @Field(def = "0")
     private int ergebnis;
     @Field(nullable = true)