feat: implemented proper deserialization for EntityID and IntVector2

src/main/java/uulm/teamname/marvelous/gamelibrary/entities/EntityID.java

@@ -1,15 +1,18 @@
 package uulm.teamname.marvelous.gamelibrary.entities;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 import uulm.teamname.marvelous.gamelibrary.json.ingame.EntityIDDeserializer;
 
 import java.util.Objects;
 
 /** Represents a distinct identification for every {@link Entity} in a game. */
+@JsonPropertyOrder({"entityID", "ID"})
 @JsonDeserialize(using = EntityIDDeserializer.class)
 public class EntityID {
     /** The index of the entity */
+    @JsonProperty("ID")
     public final int id;
 
     /** The type of the entity */