Update Valheim and ValheimPlus (#201)

* Update Valheim and ValheimPlus

This adds the release stream option to allow for "default_old" that was recently added. This also enable crossplay functionality.

* Update valheimconfig.json

valheimconfig.json

@@ -44,6 +44,20 @@
     },
     "DefaultValue": "1"
   },
+  {
+    "DisplayName": "Enable Crossplay",
+    "Description": "When enabled, the backend will be running Playfab instead of Steamworks. A \"Join code\" will appear when you join a Dedicated server supporting crossplay. Players can use this code to join the server. This Join code is regenerated whenever the server is restarted.",
+    "FieldName": "crossplay",
+    "Category": "Server",
+    "ParamFieldName": "crossplay",
+    "IncludeInCommandLine": false,
+    "InputType": "checkbox",
+    "EnumValues": {
+      "True": "-crossplay",
+      "False": ""
+    },
+    "DefaultValue": ""
+  },
   {
     "DisplayName": "Admin Players",
     "Description": "A list of Steam64 IDs for players that are in-game admins. [Find your Steam64 ID](https://steamidfinder.com/)",
@@ -67,5 +81,18 @@
     "Category": "Server",
     "InputType": "list",
     "Special": "listfile:./Valheim/896660/Data/bannedlist.txt"
+  },{
+    "DisplayName":"Release Stream",
+    "Category":"SteamCMD and Updates",
+    "Description":"\"public\" is default. Choose a custom release on [SteamDB](https://steamdb.info/app/896660/depots/).",
+    "Keywords":"use,experimental,release,stream",
+    "FieldName":"Stream",
+    "InputType":"text",
+    "IsFlagArgument":false,
+    "ParamFieldName":"Stream",
+    "IncludeInCommandLine":false,
+    "DefaultValue":"public",
+    "Placeholder":"public",
+    "EnumValues":{}
   }
 ]