Add new service to handle profile migrations (#468)

* Add new service to handle profile migrations

* Handle various null checks

* Remove unecessary assignments

* Further works on this:

- Loads profiles as JObject's initally, so migration can take place on profiles that don't have proper compatability
- Adds prerequisite migrations, and sorts them after one another

* Throw exception if profile can't be deserialized after migration

* Cleanup & use profile version

* Further migrations work, support 3.10 & 3.11 profiles upgrading to 4.0

* Update parameter name

Libraries/SPTarkov.Server.Core/Controllers/GameController.cs

@@ -70,12 +70,6 @@ public class GameController(
             return;
         }
 
-        fullProfile.SptData ??= new Spt
-        {
-            //TODO: complete
-            Version = "Replace_me",
-        };
-        fullProfile.SptData.Migrations ??= new Dictionary<string, long>();
         fullProfile.FriendProfileIds ??= [];
 
         if (fullProfile.ProfileInfo?.IsWiped is not null && fullProfile.ProfileInfo.IsWiped.Value)