allow host username to be specified during installation, allow user to be added to host role, refresh user list after delete, improve date/time entry in scheduled jobs, require license acceptance during module and theme install

Oqtane.Shared/Models/Package.cs

@@ -32,6 +32,11 @@ namespace Oqtane.Models
         /// </summary>
         public string Description { get; set; }
 
+        /// <summary>
+        /// License for the Package. 
+        /// </summary>
+        public string License { get; set; }
+
         /// <summary>
         /// Friendly name of the package
         /// </summary>