added a ScriptsLoaded property in ModuleBase and ThemeBase for flow control in Interactive rendering scenarios

Oqtane.Client/Themes/ThemeBase.cs

@@ -15,6 +15,8 @@ namespace Oqtane.Themes
 {
     public abstract class ThemeBase : ComponentBase, IThemeControl
     {
+        private bool _scriptsloaded = false;
+
         [Inject]
         protected ILogService LoggingService { get; set; }
 
@@ -82,6 +84,15 @@ namespace Oqtane.Themes
                     }
                 }
             }
+            _scriptsloaded = true;
+        }
+
+        public bool ScriptsLoaded
+        {
+            get
+            {
+                return _scriptsloaded;
+            }
         }
 
         // property for obtaining theme information about this theme component