added user panel token and folder needed for webgui pr (#3141)

data/assets/util/webgui.asset

@@ -33,6 +33,9 @@ asset.onInitialize(function()
   local directories = openspace.propertyValue("Modules.WebGui.Directories")
   directories[#directories + 1] = "frontend"
   directories[#directories + 1] = frontend .. "frontend"
+  --Add user directory for webpanels
+  directories[#directories + 1] = "webpanels"
+  directories[#directories + 1] = openspace.absPath("${USER_PANELS}")
 
   openspace.setPropertyValueSingle("Modules.WebGui.Directories", directories)
   openspace.setPropertyValueSingle("Modules.WebGui.DefaultEndpoint", "frontend")

openspace.cfg

@@ -101,6 +101,7 @@ Paths = {
     USER_ASSETS = "${USER}/data/assets",
     USER_PROFILES = "${USER}/data/profiles",
     USER_CONFIG = "${USER}/config",
+    USER_PANELS = "${USER}/webpanels",
     FONTS = "${DATA}/fonts",
     TASKS = "${DATA}/tasks",
     -- If the the 'OPENSPACE_SYNC' environment variable is defined on the system, use that

src/engine/openspaceengine.cpp

@@ -897,6 +897,9 @@ void OpenSpaceEngine::createUserDirectoriesIfNecessary() {
     if (!std::filesystem::exists(absPath("${USER_CONFIG}"))) {
         std::filesystem::create_directories(absPath("${USER_CONFIG}"));
     }
+    if (!std::filesystem::is_directory(absPath("${USER_PANELS}"))) {
+        std::filesystem::create_directories(absPath("${USER_PANELS}"));
+    }
 }
 
 void OpenSpaceEngine::runGlobalCustomizationScripts() {