Server Initialization and Serverside Galaxy/Zone Delivery

Made the master server connect to the database and now it's listening for and responding correctly to GalaxyRequestMessages and ZoneRequestMessages, generating the zone contents if they do not yet exist.

Assets/Scripts/ServerShared/ZoneData.cs

@@ -99,7 +99,7 @@ public class PlanetData : DatabaseEntry, INamedEntry
 public class OrbitData : DatabaseEntry
 {
     [JsonProperty("parent")] [Key(1)]
-    public Guid Parent;
+    public Guid? Parent;
     
     [JsonProperty("distance")] [Key(2)]
     public float Distance;