Stationeers: add branch setting (#323)

stationeers.kvp

@@ -48,7 +48,7 @@ App.AdminMethod=STDIO
 App.AdminLoginTransform=None
 App.RCONConnectDelaySeconds=5
 App.RCONConnectRetrySeconds=5
-App.UpdateSources=[{"UpdateStageName":"SteamCMD Download","UpdateSourcePlatform":"All","UpdateSource":"SteamCMD","UpdateSourceData":"600760","UpdateSourceArgs":"544550"},{"UpdateStageName":"Start Server","UpdateSourcePlatform":"All","UpdateSource":"StartApplication"},{"UpdateStageName":"Wait For Server Start","UpdateSourcePlatform":"All","UpdateSource":"WaitForStartupComplete"},{"UpdateStageName":"Stop Server","UpdateSourcePlatform":"All","UpdateSource":"ShutdownApplication"}]
+App.UpdateSources=[{"UpdateStageName":"SteamCMD Download","UpdateSourcePlatform":"All","UpdateSource":"SteamCMD","UpdateSourceData":"600760","UpdateSourceArgs":"544550","UpdateSourceVersion":"{{ServerBranch}}"},{"UpdateStageName":"Start Server","UpdateSourcePlatform":"All","UpdateSource":"StartApplication"},{"UpdateStageName":"Wait For Server Start","UpdateSourcePlatform":"All","UpdateSource":"WaitForStartupComplete"},{"UpdateStageName":"Stop Server","UpdateSourcePlatform":"All","UpdateSource":"ShutdownApplication"}]
 App.Compatibility=None
 App.SteamUpdateAnonymousLogin=True
 App.SteamForceLoginPrompt=False

stationeersconfig.json

@@ -254,5 +254,21 @@
             "True":"true",
             "False":"false"
         }
+    },
+    {
+        "DisplayName":"Server Branch",
+        "Category":"SteamCMD and Updates",
+        "Description":"Sets the server branch to install. The client must be on the same version. NOTE: Update the server after switching branches!",
+        "Keywords":"server,branch,depot",
+        "FieldName":"ServerBranch",
+        "InputType":"enum",
+        "IsFlagArgument":false,
+        "ParamFieldName":"ServerBranch",
+        "IncludeInCommandLine":false,
+        "DefaultValue":"public",
+        "EnumValues":{
+            "public":"Public (default)",
+            "beta":"Beta"
+        }
     }
 ]