Pavlov VR: Add server versions

In addition to default (public), can now select PC Beta, Shack Live or Shack RC

pavlov-vrconfig.json

@@ -1,4 +1,22 @@
 [
+    {
+        "DisplayName": "Server Version",
+        "Category": "Server Settings",
+        "Description": "Server version to install. NOTE: Update the server after changing this setting!",
+        "Keywords": "server,version,pc,shack,beta,rc",
+        "FieldName": "ServerVersion",
+        "InputType": "enum",
+        "IsFlagArgument": false,
+        "ParamFieldName": "",
+        "IncludeInCommandLine": false,
+        "DefaultValue": "",
+        "EnumValues": {
+            "": "PC Server (Non-Beta)",
+            "beta_server": "PC Beta",
+            "shack": "Shack Live (Quest)",
+            "shack_beta": "Shack RC (Quest)"
+        }
+    },
     {
         "DisplayName": "Server Name",
         "Category": "Server Settings",